A049154 Recip transform of 2*(1 + x^3 + x^4)-1/(1-x).

1, 1, 3, 9, 31, 113, 431, 1699, 6869, 28337, 118827, 505077, 2171403, 9426025, 41260639, 181923359, 807230625, 3601980785, 16152883683, 72760511753, 329066924255, 1493649861729, 6802136334927, 31070513911731

Offset

0,3

Comments

Sign diagram of generating sequence: +--++----------... Definition in A049150.

Links

Table of n, a(n) for n=0..23.

Crossrefs

Sequence in context: A049165 A052709 A049179 * A225305 A365113 A110136

Adjacent sequences: A049151 A049152 A049153 * A049155 A049156 A049157

Keyword

nonn

Author

Olivier Gérard

Status

approved