A195982 Coefficients of expansion of 1/xi_0(y)^2 (see A195980 for definition).

1, -2, -1, 0, -1, -2, -7, -18, -50, -138, -386, -1092, -3122, -9004, -26173, -76606, -225584, -667880, -1986932, -5936754, -17807936, -53606646, -161892564, -490363820, -1489319219, -4534631182, -13838799043, -42323692348, -129697503097, -398183735878, -1224576726538, -3772166985448, -11637362223230, -35953168834338, -111225021683891

Offset

0,2

Comments

All the terms after the fourth are negative.

Links

Table of n, a(n) for n=0..34.

A. D. Sokal, The leading root of the partial theta function, arXiv preprint arXiv:1106.1003, 2011. Advances in Math., to appear.

Crossrefs

Cf. A195980, A195981.

Sequence in context: A089631 A332032 A298878 * A102761 A231119 A129558

Adjacent sequences: A195979 A195980 A195981 * A195983 A195984 A195985

Keyword

sign

Author

N. J. A. Sloane, Sep 25 2011. Feb 01 2012

Status

approved