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Search: id:A060786
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| A060786 |
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9*(n-2)*(5*n-13)*(5*n^2 - 19*n + 16)/2. |
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+0
2
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| 0, 36, 1260, 7452, 25092, 63360, 134136, 252000, 434232, 700812, 1074420, 1580436, 2246940, 3104712, 4187232, 5530680, 7173936, 9158580, 11528892, 14331852, 17617140, 21437136, 25846920, 30904272, 36669672, 43206300
(list; graph; listen)
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OFFSET
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2,2
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REFERENCES
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L. Berzolari, Allgemeine Theorie der Ho"heren Ebenen Algebraischen Kurven, Encyclopa"die der Mathematischen Wissenschaften mit Einschluss ihrer Anwendungen. Band III_2. Heft 3, Leipzig: B.G. Teubner, 1906. p. 341.
H. Brocard and T. Lemoyne: Courbes geometriques remarquables (courbes speciales) Planes et Gauches. Tome I, Paris: Albert Blanchard, 1967 [First publ. 1919]; see p. 135.
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LINKS
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Harry J. Smith, Table of n, a(n) for n=2,...,1000
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FORMULA
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G.f.: 36x^3(1+30x+42x^2+2x^3)/(1-x)^5. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Oct 02 2008]
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PROGRAM
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(PARI) { for (n=2, 1000, write("b060786.txt", n, " ", 9*(n - 2)*(5*n - 13)*(5*n^2 - 19*n + 16)/2); ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jul 11 2009]
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CROSSREFS
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Sequence in context: A113938 A001110 A064196 this_sequence A063819 A158700 A144128
Adjacent sequences: A060783 A060784 A060785 this_sequence A060787 A060788 A060789
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KEYWORD
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nonn
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AUTHOR
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Antreas P. Hatzipolakis (xpolakis(AT)otenet.gr), Apr 28 2001
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