Wiener index of the prism graph Y_n on 2n nodes.

Terms

a(0) =1a(1) =8a(2) =21a(3) =48a(4) =85a(5) =144a(6) =217a(7) =320a(8) =441a(9) =600a(10) =781a(11) =1008a(12) =1261a(13) =1568a(14) =1905a(15) =2304a(16) =2737a(17) =3240a(18) =3781a(19) =4400a(20) =5061a(21) =5808a(22) =6601a(23) =7488a(24) =8425a(25) =9464a(26) =10557a(27) =11760a(28) =13021a(29) =14400