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A292067 Number of (non-null) connected induced subgraphs in the n-Sierpinski sieve graph. 1
7, 47, 6306, 16719440487, 484190291407629184897238968930 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Term a(6) has 89 decimal digits and a(7) has 265. - Andrew Howroyd, Sep 08 2017

LINKS

Andrew Howroyd, Table of n, a(n) for n = 1..7

Eric Weisstein's World of Mathematics, Connected Graph

Eric Weisstein's World of Mathematics, Sierpinski Sieve Graph

Eric Weisstein's World of Mathematics, Vertex-Induced Subgraph

CROSSREFS

Sequence in context: A013401 A020465 A092480 * A088143 A124880 A227100

Adjacent sequences:  A292064 A292065 A292066 * A292068 A292069 A292070

KEYWORD

nonn

AUTHOR

Eric W. Weisstein, Sep 08 2017

EXTENSIONS

a(4)-a(5) from Andrew Howroyd, Sep 08 2017

STATUS

approved

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Last modified November 28 16:42 EST 2021. Contains 349413 sequences. (Running on oeis4.)