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A107254
SF(2n-1)/SF(n-1)^2 where SF is the superfactorial
A000178
product of factorials.
+0
3
1, 1, 12, 8640, 870912000, 22122558259200000, 222531556847250309120000000, 1280394777025250130271722799104000000000, 5746332926632566442385615219551212618645504000000000000
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Maintained by
N. J. A. Sloane
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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.
AT&T Labs Research
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