A167156 Number of n-vertex 4-hedrites.

1, 0, 2, 0, 2, 0, 4, 0, 3, 0, 5, 0, 3, 0, 7, 0, 5, 0, 7, 0, 4, 0, 11, 0, 5, 0, 8, 0, 8, 0, 12, 0, 6, 0, 13, 0, 6, 0, 15, 0, 10, 0, 11, 0, 7, 0, 21, 0, 10, 0, 13, 0, 12, 0, 18, 0, 9, 0, 22, 0, 9, 0, 21, 0, 14, 0, 16, 0, 14

Offset: 2

Author

Jonathan Vos Post, Oct 29 2009

Keywords

• nonn

Comments

Is this the same as A145393 alternating with zeros? - Andrey Zabolotskiy, Jul 05 2017

Examples

			Although every other term is zero, this sequence should be kept, contrary to the usual OEIS rules, to be analogous to the related sequences.
		

Links

• Mathieu Dutour Sikiric, Michel Deza, 4-regular and self-dual analogs of fullerenes, arXiv:0910.5323 [math.GT], 2009.

Crossrefs

Cf. A167157, A167158, A167159, A111361.