A067897 a(n) = A000085(n) - (1 + Sum_{j=1..n-1} A000085(j)).

0, 0, 0, 0, 2, 8, 32, 112, 412, 1504, 5760, 22464, 91224, 379424, 1632896, 7201472, 32709136, 152094976, 725810176, 3540883968, 17680145184, 90115509888, 469094763008, 2489169367808, 13465672180160, 74161734785536

Offset: 0

Author

Ian Mooney, May 15 2003

Keywords

• nonn

Examples

			a(5) = A000085(5) - (1 + Sum_{j=1..4} A000085(j)) = 26 - (1 + 1 + 2 + 4 + 10) = 26 - 18 = 8. - _Jon E. Schoenfield_, Mar 14 2021
		

Crossrefs

Cf. A000085, A245176.

Formula

a(n) = A000085(n) - A245176(n-1). - Jon E. Schoenfield, Mar 14 2021

Extensions

Missing initial 0 term added by Jon E. Schoenfield, Mar 16 2021