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A081152
Number of even cycles in range [
A014137
(2n)..
A014138
(2n)] of permutation
A057505
/
A057506
.
+0
3
0, 1, 6, 37, 212, 1226, 6822, 38081, 215414
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.
AT&T Labs Research
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