349568

Appears in sequences

• Expansion of exp(tanh(x))/cosh(x).at n=10A009265
• Coordination sequence for lattice D*_64 (with edges defined by l_1 norm = 1).at n=3A035817
• Number of subsets of {1,2,3,...,n} that sum to 0 mod 3.at n=20A068010
• Number of subsets of {1,2,3,...,n} that sum to 0 mod 6.at n=21A068012
• 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=38A368259
• 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=38A368261
• 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=38A368263