3355456

Appears in sequences

• Number of circulant tournaments on 2n+1 nodes up to Cayley isomorphism.at n=26A002086
• Number of nonisomorphic circulant tournaments, i.e., Cayley tournaments for cyclic group of order 2n-1.at n=27A049288
• Number of subsets of {1,2,3,...,n} that sum to 0 mod 5.at n=24A068011
• Number of subsets of {1,2,3,...,n} that sum to 0 mod 10.at n=25A068031
• Number of (n+2)X(5+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 2 5 6 or 7 and every 3X3 column and antidiagonal sum not equal to 0 2 5 6 or 7.at n=7A252676
• 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=40A368259
• 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=40A368261
• 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=40A368263