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A215621 Number of nonplanar apex graphs on n vertices. 1
0, 0, 0, 0, 1, 13, 204, 4700, 147063, 5669609 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,6

LINKS

Table of n, a(n) for n=1..10.

Eric Weisstein's World of Mathematics, Apex Graph

Eric Weisstein's World of Mathematics, Nonplanar Graph

CROSSREFS

Cf. A215620 (counts of all apex graphs, including planar ones).

Sequence in context: A014404 A057807 A057804 * A299960 A194727 A059355

Adjacent sequences:  A215618 A215619 A215620 * A215622 A215623 A215624

KEYWORD

nonn,more

AUTHOR

Eric W. Weisstein, Aug 17 2012

EXTENSIONS

a(10) from Eric W. Weisstein, Aug 20 2012

STATUS

approved

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Last modified November 20 14:54 EST 2019. Contains 329337 sequences. (Running on oeis4.)