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A122082
Number of unlabeled bicolored graphs on 2n nodes which are invariant when the two color classes are interchanged.
+0
3
1, 2, 5, 16, 67, 404, 3904, 64840, 1930842, 104698904, 10401039400, 1900637187280, 641429385018832, 401454435464761376, 467919402404052870944, 1019758699013228238271040, 4171161230867751509749228304
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Maintained by
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njas@research.att.com
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Last modified December 16 17:18 EST 2009. Contains 170825 sequences.
AT&T Labs Research
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