149800

Appears in sequences

• Number of subsets of {1,2,3,...,n} that sum to 0 mod 7.at n=20A068013
• Number of subsets of {1,2,3,...,n} that sum to 0 mod 14.at n=21A068035
• a(n) = n*(n + 1)*(5*n^2 + 5*n - 4)/12.at n=24A264853
• Table read by downward antidiagonals: T(n,k) is the number of tilings of the n X k cylinder up to horizontal reflection by an asymmetric tile.at n=42A368259
• Table read by downward antidiagonals: T(n,k) is the number of tilings of the n X k cylinder up to vertical reflection by an asymmetric tile.at n=42A368261
• Table read by downward antidiagonals: T(n,k) is the number of tilings of the n X k cylinder up to 180-degree rotation by an asymmetric tile.at n=42A368263