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Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!) A219905 Number of isomorphism classes of IPR nanocones with 5 pentagons and a symmetric boundary of length n. 4 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 13, 46, 153, 358, 797, 1527 (list; graph; refs; listen; history; text; internal format) OFFSET 0,11 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. A219901, A219902, A219903, A219904. Sequence in context: A010003 A007587 A318035 * A326163 A034462 A116476 Adjacent sequences: A219902 A219903 A219904 * A219906 A219907 A219908 KEYWORD nonn,more AUTHOR N. J. A. Sloane, Dec 01 2012 STATUS approved

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Last modified August 18 08:16 EDT 2024. Contains 375255 sequences. (Running on oeis4.)