68937

Appears in sequences

• T(n,k) = Number of (n+1) X (k+1) 0..2 arrays with the number of clockwise edge increases in every 2 X 2 subblock equal to the number of counterclockwise edge increases.at n=7A209517
• T(n,k) = Number of (n+1) X (k+1) 0..2 arrays with the number of clockwise edge increases in every 2 X 2 subblock equal to the number of counterclockwise edge increases.at n=8A209517
• Numbers that are the sum of six fifth powers in two or more ways.at n=35A345507
• Numbers that are the sum of six fifth powers in exactly two ways.at n=35A346357
• a(n) = (2*n^3 - 6*n^2 + 19*n - 9)*n/6.at n=21A378023