Wiener index of the n-halved cube graph.

Terms

a(0) =0a(1) =1a(2) =6a(3) =32a(4) =160a(5) =768a(6) =3584a(7) =16384a(8) =73728a(9) =327680a(10) =1441792a(11) =6291456a(12) =27262976a(13) =117440512a(14) =503316480a(15) =2147483648a(16) =9126805504a(17) =38654705664a(18) =163208757248a(19) =687194767360