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A234634
Numbers of undirected cycles in the n-Sierpinski sieve graph.
2
1, 11, 1033, 1030304099, 873851166316875626844153297, 531723201747806346628696993678355296791302025810590916630277786972117723914960891
OFFSET
1,2
COMMENTS
Term a(7) has 243 decimal digits and a(8) has 727 decimal digits. - Andrew Howroyd, Jun 18 2017
LINKS
Eric Weisstein's World of Mathematics, Graph Cycle
Eric Weisstein's World of Mathematics, Sierpinski Sieve Graph
CROSSREFS
KEYWORD
nonn
AUTHOR
Eric W. Weisstein, Dec 28 2013
EXTENSIONS
a(4)-a(6) from Andrew Howroyd, Jun 18 2017
STATUS
approved