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A159993
Denominator of Sum(
A159990
(k)/
A159991
(k): 0<=k<=n), numerator=
A159992
.
+0
7
1, 30, 3600, 36000, 4320000, 24300000, 23328000000, 93312000000, 3359232000000, 223948800000000, 604661760000000000, 36279705600000000000, 544195584000000000000, 1360488960000000000000, 326517350400000000000000
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 20 00:58 EST 2009. Contains 171054 sequences.
AT&T Labs Research
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