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A206000 Inverse Euler transform of 2 - A195981. 3
1, 0, 0, 1, 2, 6, 15, 40, 110, 303, 853, 2419, 6950, 20110, 58677, 172267, 508825, 1510472, 4504978, 13491155, 40554394, 122318519, 370075767, 1122830663, 3415591776, 10414918850, 31827804005, 97464863424, 299032201886, 919094334980, 2829593105751, 8724968220133, 26942517476931, 83312297368383 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,5

COMMENTS

The sequence is conjectured to be nonnegative and convex.

LINKS

Table of n, a(n) for n=0..33.

N. J. A. Sloane, Transforms

A. D. Sokal, The leading root of the partial theta function, arXiv preprint arXiv:1106.1003, 2011.  Adv. Math. 229 (2012), no. 5, 2603-2621.

CROSSREFS

Cf. A195980, A195981, A205999.

Sequence in context: A172399 A001654 A062106 * A316981 A319560 A061322

Adjacent sequences:  A205997 A205998 A205999 * A206001 A206002 A206003

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Feb 02 2012, Feb 03 2012

STATUS

approved

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Last modified January 22 10:25 EST 2020. Contains 331144 sequences. (Running on oeis4.)