Symmetries in unrooted (1,4) trees on 3n-1 vertices.

A003614

Symmetries in unrooted (1,4) trees on 3n-1 vertices.

Terms

    a(0) =2a(1) =24a(2) =72a(3) =144a(4) =1584a(5) =32544a(6) =30528a(7) =188928a(8) =4030848a(9) =12029184a(10) =66104064a(11) =524719872a(12) =2364433920a(13) =28794737664a(14) =194617138176a(15) =962354727936

External references