A049170 - OEIS

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A049170

Recip transform of 2*(1 + x^3 + x^4 + x^5 + x^6)-1/(1-x).

1

1, 1, 3, 9, 31, 111, 413, 1573, 6099, 23959, 95061, 380043, 1528197, 6171985, 25007283, 101550555, 412959045, 1680406133, 6837586143, 27802552381, 112895001739, 457488768507, 1848804315681, 7444992290081, 29847734946071

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OFFSET

0,3

COMMENTS

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

LINKS

Table of n, a(n) for n=0..24.

CROSSREFS

Sequence in context: A151033 A047012 A120305 * A049174 A209335 A049159

Adjacent sequences: A049167 A049168 A049169 * A049171 A049172 A049173

KEYWORD

nonn

AUTHOR

Olivier Gérard

STATUS

approved