A260341 A002107 with the zero terms omitted.

1, -2, -1, 2, 1, 2, -2, -2, -2, 1, 2, 3, -2, 2, -2, -2, -2, -1, 2, 2, -2, 2, 1, 2, 2, -2, -2, 2, -2, -4, 1, -2, 2, 2, 2, 1, -2, 2, 2, -2, -2, -2, 2, -4, -2, -1, 2, 2, -2

Offset

0,2

Links

Table of n, a(n) for n=0..48.

J. W. L. Glaisher, On the square of Euler's series, Proc. London Math. Soc., 21 (1889), 182-194. See Table I.

Crossrefs

Cf. A002107.

Sequence in context: A243404 A219181 A347833 * A109969 A085035 A198333

Adjacent sequences: A260338 A260339 A260340 * A260342 A260343 A260344

Keyword

sign

Author

N. J. A. Sloane, Jul 30 2015

Status

approved