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A145270 Number of simple connected nonplanar graphs on n nodes. 2
0, 0, 0, 0, 0, 1, 13, 207, 5143, 189195, 10663766, 989251266, 163746458178 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,7

LINKS

Table of n, a(n) for n=0..12.

Eric Weisstein's World of Mathematics, Connected Graph

Eric Weisstein's World of Mathematics, Nonplanar Graph

Eric Weisstein's World of Mathematics, Simple Graph

FORMULA

a(n) = A001349(n) - A003094(n).

CROSSREFS

Cf. A145269.

Sequence in context: A206348 A240393 A319115 * A296671 A196328 A340431

Adjacent sequences: A145267 A145268 A145269 * A145271 A145272 A145273

KEYWORD

nonn,more

AUTHOR

Eric W. Weisstein, Oct 05 2008

EXTENSIONS

Edited by Max Alekseyev, Sep 18 2009

a(12) added by Max Alekseyev, Aug 17 2015

STATUS

approved

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Last modified December 4 16:09 EST 2022. Contains 358558 sequences. (Running on oeis4.)