158900

Appears in sequences

• Truncated tetrahedral numbers: a(n) = (1/6)*(n+1)*(23*n^2 + 19*n + 6).at n=34A005906
• Number of ways to place 3 nonattacking grasshoppers on a toroidal chessboard of size n x n.at n=9A190398
• Number of nondecreasing -n..n vectors of length 5 whose dot product with some nonincreasing -n..n vector equals 5.at n=12A226402