A262583 a(n) = A002704(n)-2.

0, 24, 936, 42798, 2130456, 111557592, 6041272680, 335089258632, 18922687509960, 1083572842675608, 62744027461625646, 3666433604712457464, 215879610645469496232, 12792865816027823374872, 762278349313657804740840, 45638342462133835019322552

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 3.

Crossrefs

Cf. A002704, A262570, A262584.

Extensions

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

a(15) corrected by Georg Fischer, Jun 27 2020