121838

Appears in sequences

• Number of irreducible representations of the symmetric group S_n such that their degree is divisible by 3.at n=46A061569
• Numbers n such that T(n) + T(n+1) + ... + T(n+26) is a square, where T = A000217 (triangular numbers).at n=23A257709
• a(n) = 2*n^3 - 4*n^2 + 6*n - 2 (n>=1).at n=39A304159
• Number of (undirected) paths in the m X n knight graph (triangle read by rows with m = 1..n and n = 1..).at n=23A307025