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A219901 Number of isomorphism classes of IPR nanocones with 3 pentagons and a symmetric boundary of length n. 5
0, 0, 2, 4, 10, 16, 29, 41, 64, 85, 120, 153, 203, 250, 318, 382 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

REFERENCES

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

LINKS

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

CROSSREFS

Cf. A197988, A198014, A198015, A198016, A198086, A219901-A219905.

Sequence in context: A006584 A280186 A032246 * A141138 A077627 A228136

Adjacent sequences:  A219898 A219899 A219900 * A219902 A219903 A219904

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Dec 01 2012

STATUS

approved

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Last modified October 31 05:06 EDT 2020. Contains 338098 sequences. (Running on oeis4.)