Given n (only odd), return output matrix a that has concentric rings of the numbers 1 through (n+1)/2 around the center point.

For n = 3,

a = [2 2 2;
     2 1 2;
     2 2 2;]

For n = 5,

a = [3 3 3 3 3;
     3 2 2 2 3;
     3 2 1 2 3;
     3 2 2 2 3;
     3 3 3 3 3;]
Solve

Solution Stats

73 Solutions

33 Solvers

Last Solution submitted on Jul 26, 2026

Last 200 Solutions

Problem Comments

Solution Comments

Show comments

Problem Recent Solvers33

Chris Cleveland George Berken Alexander Ross Lorenzo

Suggested Problems

More from this Author1

Problem Tags

Community Treasure Hunt

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

Start Hunting!