OFFSET
1,1
COMMENTS
Apparently, there is a formula in the A. Hinz reference.
LINKS
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
KEYWORD
nonn,more
AUTHOR
Andrew Howroyd, Sep 03 2017
EXTENSIONS
a(11) from Eric W. Weisstein, Sep 07 2017
STATUS
approved