The Wiener index of the graph \|/_\/_\/_..._\/_\|/ having n nodes on the horizontal path.

Terms

a(0) =58a(1) =136a(2) =259a(3) =436a(4) =676a(5) =988a(6) =1381a(7) =1864a(8) =2446a(9) =3136a(10) =3943a(11) =4876a(12) =5944a(13) =7156a(14) =8521a(15) =10048a(16) =11746a(17) =13624a(18) =15691a(19) =17956a(20) =20428a(21) =23116a(22) =26029a(23) =29176a(24) =32566a(25) =36208a(26) =40111a(27) =44284a(28) =48736a(29) =53476