Number of labeled n-node 4-valent graphs containing two adjacent double edges.

A058832

Number of labeled n-node 4-valent graphs containing two adjacent double edges.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =0a(7) =630a(8) =28560a(9) =1330560a(10) =74314800a(11) =5057098200a(12) =413836259760

External references