A030625 n(n+Z(n)), where Z( ) is the Narayana-Zidek-Capell sequence (A002083).

0, 2, 6, 12, 24, 40, 72, 126, 240, 459, 940, 1936, 4104, 8671, 18508, 39300, 83616, 177055, 374652, 789811, 1662400, 3488877, 7309588, 15279406, 31886928, 66422275, 138157708, 286924599, 595102144, 1232672869

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn

Crossrefs

Cf. A002083.