A219901 Number of isomorphism classes of IPR nanocones with 3 pentagons and a symmetric boundary of length n.

0, 0, 2, 4, 10, 16, 29, 41, 64, 85, 120, 153, 203, 250, 318, 382

Offset

0,3

Links

Table of n, a(n) for n=0..15.

Gunnar Brinkmann and Nico Van Cleemput, Classification and generation of nanocones, Discrete Applied Mathematics, 159 (2011), 1528-1539.

Crossrefs

Cf. A197988, A198014, A198015, A198016, A198086.

Cf. A219902, A219903, A219904, A219905.

Sequence in context: A006584 A280186 A032246 * A141138 A077627 A228136

Adjacent sequences: A219898 A219899 A219900 * A219902 A219903 A219904

Keyword

nonn,more

Author

N. J. A. Sloane, Dec 01 2012

Status

approved