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%I #14 Oct 07 2025 05:02:42
%S 1,0,1,2,5,18,81,480,3874,39866,497818,7187627,116349635,2072540352
%N Number of unlabeled biconnected cubic simple graphs with 2n nodes.
%H Combos, <a href="http://combos.org/nauty">Generate graphs</a>.
%H Brendan McKay and Adolfo Piperno, <a href="https://pallini.di.uniroma1.it/">nauty and Traces</a>.
%Y Cf. A002851, A005638, A058378.
%K nonn,more
%O 0,4
%A _Hugo Pfoertner_, Aug 21 2025
%E a(13) from _Georg Grasegger_, Oct 07 2025