# SEQUENCE

In this comprehensive guide, we will explore the SEQUENCE function in Excel, which is a dynamic array function that generates a list of sequential numbers in an array. This function is particularly useful when you need to create a series of numbers, such as a list of dates, times, or even just a simple numeric sequence. We will cover the syntax, examples, tips and tricks, common mistakes, troubleshooting, and related formulae for the SEQUENCE function.

## SEQUENCE Syntax

The syntax for the SEQUENCE function in Excel is as follows:

SEQUENCE(rows, [columns], [start], [step])

Where:

• rows (required) – The number of rows in the resulting array.
• columns (optional) – The number of columns in the resulting array. If omitted, it defaults to 1.
• start (optional) – The starting value of the sequence. If omitted, it defaults to 1.
• step (optional) – The increment between each value in the sequence. If omitted, it defaults to 1.

## SEQUENCE Examples

Let’s look at some examples of how to use the SEQUENCE function in Excel:

Example 1: Basic usage

To create a simple sequence of numbers from 1 to 10, you can use the following formula:

=SEQUENCE(10)

This will generate a vertical array of numbers from 1 to 10, with a step of 1.

Example 2: Specifying rows and columns

If you want to create a 3×3 matrix of numbers, you can use the following formula:

=SEQUENCE(3, 3)

This will generate a 3×3 array of numbers, starting from 1 and incrementing by 1.

Example 3: Custom start and step values

To create a sequence of even numbers from 2 to 20, you can use the following formula:

=SEQUENCE(10, 1, 2, 2)

This will generate a vertical array of even numbers from 2 to 20, with a step of 2.

## SEQUENCE Tips & Tricks

Here are some tips and tricks to help you make the most of the SEQUENCE function in Excel:

Tip 1: Generating a list of dates

You can use the SEQUENCE function to generate a list of dates. For example, to create a list of dates starting from January 1, 2022, and incrementing by 7 days, you can use the following formula:

=SEQUENCE(10, 1, DATE(2022, 1, 1), 7)

This will generate a vertical array of 10 dates, starting from January 1, 2022, and incrementing by 7 days.

Tip 2: Combining with other functions

You can combine the SEQUENCE function with other functions to create more complex sequences. For example, to create a list of square numbers, you can use the following formula:

=SEQUENCE(10)^2

This will generate a vertical array of square numbers from 1 to 100.

## Common Mistakes When Using SEQUENCE

Here are some common mistakes to avoid when using the SEQUENCE function in Excel:

Mistake 1: Using negative values for rows or columns

The SEQUENCE function does not support negative values for the rows or columns arguments. If you try to use a negative value, you will receive a #VALUE! error.

Mistake 2: Using non-integer values for rows, columns, start, or step

The SEQUENCE function requires integer values for the rows, columns, start, and step arguments. If you use non-integer values, Excel will truncate the decimal part and use the integer portion of the number.

## Why Isn’t My SEQUENCE Working?

If you’re having trouble with the SEQUENCE function, here are some common issues and solutions:

Issue 1: #VALUE! error

If you see a #VALUE! error, it’s likely because you’ve used a negative value for the rows or columns argument. Make sure to use positive integer values for these arguments.

Issue 2: #SPILL! error

If you see a #SPILL! error, it means that there isn’t enough space in the worksheet for the resulting array. Make sure there is enough space for the array, or adjust the rows and columns arguments to fit the available space.

## SEQUENCE: Related Formulae

Here are some related formulae that you might find useful when working with the SEQUENCE function in Excel:

1. RANDARRAY

The RANDARRAY function generates an array of random numbers. It can be used to create random sequences of numbers, dates, or times.

2. SORT

The SORT function sorts the contents of an array or range. You can use it to sort the output of the SEQUENCE function in ascending or descending order.

3. UNIQUE

The UNIQUE function returns a list of unique values from an array or range. You can use it to remove duplicates from the output of the SEQUENCE function.

4. FILTER

The FILTER function filters an array or range based on a specified condition. You can use it to filter the output of the SEQUENCE function based on certain criteria.

5. INDEX

The INDEX function returns the value at a specified row and column within an array or range. You can use it to extract specific values from the output of the SEQUENCE function.

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