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A009183
Expansion of cosh(x)/cosh(ln(1+x)).
+0
1
1, 0, 0, 3, -11, 30, -14, -525, 4593, -22428, 17596, 1039995, -13641275, 96216978, -105681666, -8517557685, 148962722881, -1373978443800, 1940315387608, 198084321525267, -4330346354150859, 49339565916861990, -85160442362115350
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 19 12:50 EST 2009. Contains 171053 sequences.
AT&T Labs Research
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