28794

Appears in sequences

• a(n) = Sum_{i,j,k in Z and i^2 + j^2 + k^2 <= n} i^2 + j^2 + k^2.at n=41A014203
• a(n) = Sum_{d|n} A000010(n/d) * A000045(d-1).at n=23A113166
• Number of planar n X n X n binary triangular grids with no more than 7 ones in any similarly oriented 4 X 4 X 4 subtriangle.at n=5A153561
• Number of n X 4 0..2 arrays with horizontal differences mod 3 never 1, vertical differences mod 3 never -1, rows lexicographically nondecreasing, and columns lexicographically nonincreasing.at n=7A229424
• E.g.f.: 1 / (1 - 6 * log(1 + x))^(1/6).at n=5A347023