A290129 Wiener index of the n-Sierpinski sieve graph.

3, 21, 246, 3765, 64032, 1130463, 20215254, 363069729, 6530385420, 117517503027, 2115137375634

Offset

1,1

Comments

Apparently, there is a formula in the A. Hinz reference.

Links

Table of n, a(n) for n=1..11.

A. Hinz, A. Schief, The average distance on the Sierpinski gasket, Probab. Th. Rel. Fields (1990) 87: 129.

Eric Weisstein's World of Mathematics, Sierpiński Sieve Graph

Eric Weisstein's World of Mathematics, Wiener Index

Crossrefs

Cf. A290004.

Sequence in context: A234303 A138213 A193333 * A365602 A371006 A355092

Adjacent sequences: A290126 A290127 A290128 * A290130 A290131 A290132

Keyword

nonn,more

Author

Andrew Howroyd, Sep 03 2017

Extensions

a(11) from Eric W. Weisstein, Sep 07 2017

Status

approved