A078660 Expansion of Product_{ n >= 2, n not of the form 2^k-1 } (1+x^n).

1, 0, 1, 0, 1, 1, 2, 1, 2, 2, 3, 4, 4, 5, 6, 7, 8, 10, 11, 14, 15, 18, 20, 25, 27, 33, 35, 43, 47, 56, 62, 71, 80, 92, 103, 118, 132, 149, 168, 190, 212, 240, 267, 300, 336, 375, 419, 468, 521, 580, 646, 717, 798, 885, 981, 1087, 1204, 1332, 1473, 1626, 1797, 1980, 2187, 2405

Offset

0,7

Links

Table of n, a(n) for n=0..63.

Crossrefs

Sequence in context: A152227 A246583 A244788 * A239239 A241701 A347662

Adjacent sequences: A078657 A078658 A078659 * A078661 A078662 A078663

Keyword

nonn

Author

N. J. A. Sloane, Dec 15 2002

Status

approved