A049153 Recip transform of 2*(1 + x^2 + x^4)-1/(1-x).

1, 1, 1, 1, 1, 1, 3, 19, 93, 353, 1125, 3173, 8221, 20297, 50055, 130255, 370545, 1140001, 3636265, 11563041, 35888977, 108146737, 317966187, 922132531, 2672794621, 7832167585, 23346616525, 70754228885, 216792576093

Offset

0,7

Comments

Sign diagram of generating sequence: +-+-+----------...

Links

Table of n, a(n) for n=0..28.

Crossrefs

Sequence in context: A050863 A376836 A283380 * A074361 A126187 A215420

Adjacent sequences: A049150 A049151 A049152 * A049154 A049155 A049156

Keyword

nonn

Author

Olivier Gérard

Status

approved