A215621 Number of nonplanar apex graphs on n vertices.

0, 0, 0, 0, 1, 13, 204, 4700, 147063, 5669609

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