Number of sensed unrooted combinatorial maps with n edges.

A170946

Number of sensed unrooted combinatorial maps with n edges.

Terms

    a(0) =1a(1) =2a(2) =5a(3) =20a(4) =107a(5) =870a(6) =9436a(7) =122840a(8) =1863359a(9) =32019826a(10) =613981447a(11) =12989756316a(12) =300559406027

External references