The Wiener index of the windmill graph D(6,n). The windmill graph D(m,n) is the graph obtained by taking n copies of the complete graph K_m with a vertex in common (i.e., a bouquet of n pieces of K_m graphs).

A180577

The Wiener index of the windmill graph D(6,n). The windmill graph D(m,n) is the graph obtained by taking n copies of the complete graph K_m with a vertex in common (i.e., a bouquet of n pieces of K_m graphs).

Terms

    a(0) =15a(1) =80a(2) =195a(3) =360a(4) =575a(5) =840a(6) =1155a(7) =1520a(8) =1935a(9) =2400a(10) =2915a(11) =3480a(12) =4095a(13) =4760a(14) =5475a(15) =6240a(16) =7055a(17) =7920a(18) =8835a(19) =9800a(20) =10815a(21) =11880a(22) =12995a(23) =14160a(24) =15375a(25) =16640a(26) =17955a(27) =19320a(28) =20735a(29) =22200

External references