Wiener index of the n-web graph.

Terms

a(0) =4a(1) =27a(2) =69a(3) =148a(4) =255a(5) =417a(6) =616a(7) =888a(8) =1206a(9) =1615a(10) =2079a(11) =2652a(12) =3289a(13) =4053a(14) =4890a(15) =5872a(16) =6936a(17) =8163a(18) =9481a(19) =10980a(20) =12579a(21) =14377a(22) =16284a(23) =18408a(24) =20650a(25) =23127a(26) =25731a(27) =28588a(28) =31581a(29) =34845