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A064203 n*(n^2 - 1)*(n+2)*(2*n^5 + 14*n^4 + 49*n^3 + 91*n^2 + 90*n + 18)/324. 1
0, 0, 92, 1500, 11780, 61880, 249480, 831992, 2403800, 6205760, 14630660, 32006260, 65757692, 128073400, 238223440, 425705840, 734425840, 1228144192, 1997464300, 3168663820, 4914714420, 7468873720, 11141275992, 16338993000 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

REFERENCES

L. Berzolari, Allgemeine Theorie der Höheren Ebenen Algebraischen Kurven, Encyclopädie der Mathematischen Wissenschaften mit Einschluss ihrer Anwendungen. Band III_2. Heft 3, Leipzig: B. G. Teubner, 1906. p. 352.

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..1000

FORMULA

G.f.: 4*x^2*(23+145*x+230*x^2+135*x^3+25*x^4+2*x^5)/(1-x)^10. - Colin Barker, Feb 28 2012

MATHEMATICA

Table[n*(n^2-1)*(n+2)*(2*n^5+14*n^4+49*n^3+91*n^2+90*n +18)/324, {n, 0, 40}] (* Vincenzo Librandi, Feb 29 2012 *)

PROG

(MAGMA) [n*(n^2 - 1)*(n+2)*(2*n^5 + 14*n^4 + 49*n^3 + 91*n^2 + 90*n + 18)/324: n in [0..30]]; // Vincenzo Librandi, Feb 29 2012

CROSSREFS

Sequence in context: A279913 A172449 A251934 * A265968 A179798 A232795

Adjacent sequences:  A064200 A064201 A064202 * A064204 A064205 A064206

KEYWORD

nonn,easy

AUTHOR

Antreas P. Hatzipolakis (xpolakis(AT)otenet.gr), Sep 22 2001

STATUS

approved

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Last modified August 12 00:34 EDT 2022. Contains 356067 sequences. (Running on oeis4.)