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A104097
Denominators of coefficients in expansion of x^-2*(1-exp(-2*x))^2.
3
1, 1, 3, 1, 45, 5, 315, 189, 2025, 4725, 467775, 1485, 42567525, 212837625, 91216125, 42567525, 97692469875, 516891375, 9280784638125, 236238154425, 43752270436875, 714620417135625, 147926426347074375, 53123043290625, 48076088562799171875
OFFSET
0,3
LINKS
MAPLE
S:= series(x^(-2)*(1-exp(-2*x))^2, x, 32):
seq(denom(coeff(S, x, j)), j=0..31); # Robert Israel, Aug 12 2019
CROSSREFS
See A104042 for more information.
Sequence in context: A362166 A136517 A366479 * A344379 A155812 A158958
KEYWORD
nonn,frac
AUTHOR
N. J. A. Sloane, Apr 18 2005
STATUS
approved