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Look-and-say number generator

World's simplest math tool

Free online look-and-say number generator. Just specify how many numbers you'll need and you'll automatically get that many numbers. There are no ads, popups or nonsense, just an awesome look-and-say calculator. Press button, get look-and-say sequence. Created by mathematicians for mathematicians.
Look-and-say Generator Options
Start generating sequence from this number
How many numbers to generate?
Which character to separate look-and-say numbers with? (Newline by default.)
Look-and-say number generator tool What is a look-and-say number generator?
This tool calculates look-and-say sequence numbers. Look-and-say sequence starts at 1 and works as following - you look at current number and say what you see. You can specify how many numbers you need and which sequence element to start with. Mathabulous!
Look-and-say number generator examples Click to use
Generate 8 look-and-say numbers
This example calculates 8 look-and-say numbers starting from 1.
1 11 21 1211 111221 312211 13112221 1113213211
Required options
These options will be used automatically if you select this example.
Start generating sequence from this number
How many numbers to generate?
Calculate five look-and-say numbers
This example generates 5 look-and-say numbers starting from 10th element.
13211311123113112211 11131221133112132113212221 3113112221232112111312211312113211 1321132132111213122112311311222113111221131221 11131221131211131231121113112221121321132132211331222113112211
Required options
These options will be used automatically if you select this example.
Start generating sequence from this number
How many numbers to generate?
Change numbers separator look-and-say numbers
This example generates 5 look-and-say numbers and changes separator between numbers.
1 | 11 | 21 | 1211 | 111221
Required options
These options will be used automatically if you select this example.
Start generating sequence from this number
How many numbers to generate?
Which character to separate look-and-say numbers with? (Newline by default.)
Pro tips Master online math tools
You can pass options to this tool using their codes as query arguments and it will automatically compute output. To get the code of an option, just hover over its icon. Here's how to type it in your browser's address bar. Click to try!
https://onlinemathtools.com/generate-look-and-say-sequence?&first-element=1&count=8
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