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A049179 Revert transform of 2*(1 + x + x^2 + x^5 + x^6)-1/(1-x). 0
1, 1, 3, 9, 31, 113, 431, 1697, 6849, 28181, 117787, 498705, 2134499, 9220393, 40146495, 176011777, 776363417, 3442818809, 15340344035, 68645684937, 308365373183, 1390064360561, 6286153799119, 28510001658689 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

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

LINKS

Table of n, a(n) for n=1..24.

N. J. A. Sloane, Transforms

Index entries for reversions of series

CROSSREFS

Sequence in context: A049188 A049165 A052709 * A049154 A225305 A110136

Adjacent sequences:  A049176 A049177 A049178 * A049180 A049181 A049182

KEYWORD

nonn

AUTHOR

Olivier Gérard

STATUS

approved

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Last modified September 22 16:50 EDT 2020. Contains 337291 sequences. (Running on oeis4.)