"Look and say" sequence - MATLAB Cody - MATLAB Central

Problem 594. "Look and say" sequence

Difficulty:
(303)
Rate

What's the next number in this sequence?

  • [0]
  • [1 0]
  • [1 1 1 0]
  • [3 1 1 0]
  • [1 3 2 1 1 0]

This a variant on the well-known "look and say" or Morris sequence, where each new iteration is made up by 'saying' the number of numbers you see. That last line is "one 3; then two 1s; then one 0".

Create a function that returns the next element of this sequence, given a vector as a starting seed..

Solve

Solution Stats

43.83% Correct | 56.17% Incorrect
Last Solution submitted on Mar 31, 2025

Problem Comments

Solution Comments

Show comments
Registration Now Open for MathWorks AUTOMOTIVE CONFERENCE 2025
...
Hello Community, We're excited to announce that registration is now open for the...

Problem Recent Solvers213

Suggested Problems

More from this Author3

Problem Tags

arrays math sequences

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!
Go to top of page