41695

Appears in sequences

• Thickened pyramidal numbers: a(n) = 2*(n+1)*n + Sum_{i=1..n} (4*i*(i-1) + 1).at n=31A050533
• Number of polyominoes with n cells that tile the plane both by translation and by 180-degree rotation (Conway criterion).at n=16A075200
• Partitions with superdiagonal growth: number of partitions (p0, p1, p2, ...) of n with pi - p0 >= i.at n=61A238860
• Triangular array of numbers of 2-polymatroids of rank k on n labeled points, for n>=0, 0<=k<=2n.at n=30A256158