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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
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.
CROSSREFS
KEYWORD
sign
AUTHOR
Paul Curtz, Jan 31 2010
EXTENSIONS
Edited and extended by R. J. Mathar, Feb 02 2010
STATUS
approved