Number of matchings in graph P_{4} X P_{n}
5, 71, 823, 10012, 120465, 1453535, 17525619, 211351945, 2548684656
3 seqfan posts
Sat Nov 14 21:00:55 CET 2009 [seqfan] Re: Error?
Sat Nov 14 20:03:10 CET 2009 [seqfan] Re: Error?
Sat Nov 14 19:13:02 CET 2009 [seqfan] Error?
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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