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Number of cubic graphs on 2n unlabeled vertices rooted at a vertex.
4

%I #4 Mar 11 2023 18:26:20

%S 0,1,2,11,68,510,4712,51877,664520,9662968,156490473,2783955994,

%T 53863486240,1124886942314,25206326633070,603048386506505,

%U 15339533779133582,413338072569232815,11760801736217845686,352342902996056683824

%N Number of cubic graphs on 2n unlabeled vertices rooted at a vertex.

%Y Column k=1 of A361361.

%Y Cf. A005638, A361407, A361411.

%K nonn

%O 1,3

%A _Andrew Howroyd_, Mar 11 2023