A262585 a(0)=0; thereafter a(n) = A002705(n) - 2.

0, 2, 38, 466, 5826, 76258, 1032442, 14316582, 202116106, 2893451650, 41886157562, 611902123282, 9007199254738, 133439988963010, 1987795697598010, 29752813022112178, 447193795726343002, 6746237832670921766, 102105221251235572186

Offset: 0

Author

N. J. A. Sloane, Oct 20 2015

Keywords

• nonn

Links

• Alexander Rosa and Štefan Znám, A combinatorial problem in the theory of congruences (Russian with English summary), Mat.-Fys. Casopis Sloven. Akad. Vied 15 1965 49-59. [Annotated scanned copy.]
• Alexander Rosa and Štefan Znám, A remark on a combinatorial problem (Russian with English summary), Mat.-Fyz. Casopis Sloven. Akad. Vied 15 1965 313-316. [Annotated scanned copy] See Table 2.

Crossrefs

Cf. A002705.

Extensions

More terms from R. J. Mathar, Oct 21 2015