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 A045496 Packing density for n balls in complex projective plane using Fubini-Study metric (numerators). 1
 1, 1, 3, 1, 20, 24, 63, 288, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 LINKS Table of n, a(n) for n=1..97. D. McDuff, Symplectic Structures--A New Approach to Geometry, Notices Amer. Math. Soc. 45(8) (1998), pp. 952-960. Index entries for linear recurrences with constant coefficients, signature (1). FORMULA a(n) = 1 for n >= 9 [from McDuff]. - Sean A. Irvine, Mar 12 2021 G.f.: x*(1 + 2*x^2 - 2*x^3 + 19*x^4 + 4*x^5 + 39*x^6 + 225*x^7 - 287*x^8)/(1 - x). - Elmo R. Oliveira, Jul 31 2024 MATHEMATICA PadRight[{1, 1, 3, 1, 20, 24, 63, 288}, 100, 1] (* Paolo Xausa, Aug 01 2024 *) CROSSREFS Cf. A045497. Cf. A030042. - R. J. Mathar, Oct 18 2008 Sequence in context: A181832 A139723 A030042 * A024432 A334910 A016531 Adjacent sequences: A045493 A045494 A045495 * A045497 A045498 A045499 KEYWORD nonn,easy,frac AUTHOR N. J. A. Sloane STATUS approved

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Last modified September 8 22:43 EDT 2024. Contains 375759 sequences. (Running on oeis4.)