A036728 G.f. satisfies A(x) = 1 + x*cycle_index(G,A(x)) where G = cyclic group of order 7 generated by (1,2,...,7).

1, 1, 1, 4, 15, 62, 274, 1260, 5973, 28975, 143176, 718070, 3645876, 18703560, 96799076, 504797258, 2649947859, 13992164283, 74262871273, 395964705460, 2119994732940, 11392843953996, 61432524907686, 332279234332898, 1802324611950162

Offset

0,4

Links

Table of n, a(n) for n=0..24.

Crossrefs

Cf. A036717-A036726.

Sequence in context: A007161 A352815 A007167 * A027216 A124541 A353264

Adjacent sequences: A036725 A036726 A036727 * A036729 A036730 A036731

Keyword

nonn

Author

N. J. A. Sloane.

Status

approved