A249696 - OEIS

%I #12 Nov 05 2025 15:22:28

%S 1,1,2,4,11,34,153,1035,12247,274153,11999059,1018915198

%N Number of distinct permanental polynomials among all simple undirected graphs on n nodes.

%H Shunyi Liu, Jinjun Ren, <a href="https://arxiv.org/abs/1411.0184">Enumeration of copermanental graphs</a>, arXiv:1411.0184 [math.CO], (1-November-2014)

%Y Cf. A082104 (distinct characteristic polynomials).

%K nonn,hard,more

%O 0,3

%A _Joerg Arndt_, Nov 04 2014