a(n)/A002939(n+1) is the Kirchhoff index of the join of the disjoint union of two complete graphs on n vertices with the empty graph on n+1 vertices.

A338109

a(n)/A002939(n+1) is the Kirchhoff index of the join of the disjoint union of two complete graphs on n vertices with the empty graph on n+1 vertices.

Terms

    a(0) =1a(1) =60a(2) =289a(3) =796a(4) =1689a(5) =3076a(6) =5065a(7) =7764a(8) =11281a(9) =15724a(10) =21201a(11) =27820a(12) =35689a(13) =44916a(14) =55609a(15) =67876a(16) =81825a(17) =97564a(18) =115201a(19) =134844a(20) =156601a(21) =180580a(22) =206889a(23) =235636a(24) =266929a(25) =300876a(26) =337585a(27) =377164a(28) =419721a(29) =465364

External references