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A003698
Number of 2-factors in C_4 X P_n.
+0
1
1, 9, 53, 341, 2169, 13825, 88093, 561357, 3577121, 22794425, 145252485, 925589701, 5898117961, 37584466929, 239498796653, 1526153708861, 9725080775409, 61970950592425, 394896331045333, 2516390514947637
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Maintained by
N. J. A. Sloane
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njas@research.att.com
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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.
AT&T Labs Research
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