A016060 (s(n)+s(n+1))/18, where s()=A006521.

2, 6, 14, 23, 42, 69, 126, 207, 302, 437, 621, 906, 1275, 1503, 1863, 2718, 3825, 4509, 5589, 6710, 8303, 10298, 12026, 13527, 16767, 20130, 24225, 28557, 30894, 35970, 39501, 40581, 50301

Offset: 3

Author

Robert G. Wilson v

Keywords

• nonn

Crossrefs

Cf. A006521.