57410

Appears in sequences

• Number of nonisomorphic and nonantiisomorphic reflexive transitive and cotransitive (complement is transitive) relations.at n=14A030270
• T(n,n+2), array T given by A047020.at n=9A047027
• Number of nonequivalent ways (mod D_3) to place 4 points on an n X n X n triangular grid so that no two of them are on the same row, column or diagonal.at n=12A283115
• Numbers that are the sum of five fourth powers in four or more ways.at n=18A344354
• Numbers that are the sum of five fourth powers in exactly four ways.at n=18A344355
• Expansion of (1/x) * Series_Reversion( x / (1 + x + x^3 * (1 + x)^4) ).at n=11A389158