Number of homeomorphically irreducible general graphs on 5 labeled nodes and with n edges.

A060580

Number of homeomorphically irreducible general graphs on 5 labeled nodes and with n edges.

Terms

    a(0) =1a(1) =10a(2) =40a(3) =185a(4) =765a(5) =2845a(6) =10220a(7) =33885a(8) =105185a(9) =305465a(10) =830811a(11) =2119875a(12) =5091525a(13) =11565505a(14) =24977315a(15) =51552005a(16) =102175360a(17) =195301015a(18) =361365695a(19) =649360880a(20) =1136438375a(21) =1941722170a(22) =3245874555a(23) =5318438260a(24) =8555568895a(25) =13531506921

External references