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A172298 A027641(n) * A164555(n) . 3
1, -1, 1, 0, 1, 0, 1, 0, 1, 0, 25, 0, 477481, 0, 49, 0, 13082689, 0, 1924313689, 0, 30489001321, 0, 730192467169, 0, 55867983514256281, 0, 73155570928609, 0, 564036899167989738841, 0, 74232720893311466588760025, 0, 59433630916551169012841089, 0, 6644474695172651051906689 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,11

COMMENTS

Squares of Bernoulli number numerators (apart from the sign flipped aa(1)).

The associated denominators of the squared Bernoulli numbers are in A172282.

LINKS

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

CROSSREFS

Sequence in context: A179809 A110416 A028848 * A040630 A040631 A040632

Adjacent sequences:  A172295 A172296 A172297 * A172299 A172300 A172301

KEYWORD

sign

AUTHOR

Paul Curtz, Jan 31 2010

EXTENSIONS

Edited and extended by R. J. Mathar, Feb 02 2010

STATUS

approved

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Last modified January 28 06:29 EST 2020. Contains 331317 sequences. (Running on oeis4.)