A049173 Revert transform of 2*x*(1 - x + x^2 - x^3)-x/(1+x).

1, 1, 1, 1, 3, 13, 43, 113, 273, 725, 2245, 7305, 22875, 68545, 204247, 626177, 1977377, 6301577, 19965657, 62913409, 198797059, 633412869, 2032810979, 6543426769, 21071181585, 67905492605, 219347606365, 710732629705

Offset

1,5

Comments

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

Links

Table of n, a(n) for n=1..28.

Index entries for reversions of series

Crossrefs

Sequence in context: A084476 A289413 A247584 * A049156 A054771 A258776

Adjacent sequences: A049170 A049171 A049172 * A049174 A049175 A049176

Keyword

nonn

Author

Olivier Gérard

Extensions

NAME corrected by R. J. Mathar, Jul 23 2023

Status

approved