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A249696
Number of distinct permanental polynomials among all simple undirected graphs on n nodes.
0
1, 1, 2, 4, 11, 34, 153, 1035, 12247, 274153, 11999059, 1018915198
OFFSET
0,3
LINKS
Shunyi Liu, Jinjun Ren, Enumeration of copermanental graphs, arXiv:1411.0184 [math.CO], (1-November-2014)
CROSSREFS
Cf. A082104 (distinct characteristic polynomials).
Sequence in context: A071115 A357891 A217043 * A156809 A215620 A076317
KEYWORD
nonn,hard,more
AUTHOR
Joerg Arndt, Nov 04 2014
STATUS
approved