A292028 Wiener index of the n-cube-connected cycle graph.

1, 64, 888, 9472, 76160, 556032, 3605504, 22224896, 128471040, 719708160, 3874455552, 20416954368, 104732426240, 528985096192, 2620635217920, 12831147687936, 61916622880768, 296036213981184, 1399459946692608, 6566769862901760

Offset

1,2

Links

Table of n, a(n) for n=1..20.

Eric Weisstein's World of Mathematics, Cube-Connected Cycle Graph

Eric Weisstein's World of Mathematics, Wiener Index

Formula

a(n) = n * 2^(n-1) * (Sum_{k=1..floor(5n/2)-1} k*A286756(n,k)). - Andrew Howroyd, Sep 08 2017

Crossrefs

Cf. A192191, A286756.

Sequence in context: A250281 A283547 A297686 * A306613 A185368 A027003

Adjacent sequences: A292025 A292026 A292027 * A292029 A292030 A292031

Keyword

nonn

Author

Eric W. Weisstein, Sep 07 2017

Extensions

a(1)-a(2) and a(13)-a(20) from Andrew Howroyd, Sep 08 2017

Status

approved