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A172298 a(n) = 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 at a(1)).
The associated denominators of the squared Bernoulli numbers are in A172282.
LINKS
CROSSREFS
Sequence in context: A179809 A110416 A028848 * A040630 A040631 A040632
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 May 28 12:20 EDT 2024. Contains 372913 sequences. (Running on oeis4.)