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A060785
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3*(n-2)*(5*n -11).
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1
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0, 12, 54, 126, 228, 360, 522, 714, 936, 1188, 1470, 1782, 2124, 2496, 2898, 3330, 3792, 4284, 4806, 5358, 5940, 6552, 7194, 7866, 8568, 9300, 10062, 10854, 11676, 12528, 13410, 14322, 15264, 16236, 17238, 18270, 19332, 20424, 21546
(list; graph; refs; listen; history; internal format)
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OFFSET
| 2,2
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REFERENCES
| 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. pp. 313 - 455.
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
| Harry J. Smith, Table of n, a(n) for n=2,...,1000
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FORMULA
| a(n)=30*n+a(n-1)-78 (with a(2)=0) [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Aug 07 2010]
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EXAMPLE
| a(3)=30*3+0-78=12; a(4)=30*4+12-78=54; a(5)=30*5+54-78=126 [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Aug 07 2010]
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PROG
| (PARI) { for (n=2, 1000, write("b060785.txt", n, " ", 3*(n - 2)*(5*n - 11)); ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jul 11 2009]
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CROSSREFS
| Sequence in context: A186210 A000735 A022704 * A059986 A088941 A019582
Adjacent sequences: A060782 A060783 A060784 * A060786 A060787 A060788
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KEYWORD
| nonn
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AUTHOR
| Antreas P. Hatzipolakis (xpolakis(AT)otenet.gr), Apr 28 2001
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