cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A239094 a(n) = (5*n^9 - 30*n^7 + 63*n^5 - 50*n^3 + 12*n)/360.

Original entry on oeis.org

0, 0, 1, 130, 2446, 21146, 117971, 494732, 1695036, 4992492, 13072917, 31153342, 68720938, 142120342, 278268263, 519829688, 932250488, 1613106744, 2704301673, 4407716634, 7005003334, 10882290034, 16560665275, 24733398404, 36310956980, 52474986980, 74742532605, 105041888406, 145801597410, 200054234926, 271556748751, 364929262576, 485814390512
Offset: 0

Views

Author

N. J. A. Sloane, Mar 23 2014

Keywords

Programs

  • Magma
    [(5*n^9-30*n^7+63*n^5-50*n^3+12*n)/360: n in [0..40]]; // Vincenzo Librandi, Mar 24 2014
    
  • Mathematica
    Table[(5 n^9 - 30 n^7 + 63 n^5 - 50 n^3 + 12 n)/360,{n, 0, 50}] (* Vincenzo Librandi, Mar 24 2014 *)
  • PARI
    concat([0,0], Vec(x^2*(x^6 +120*x^5 +1191*x^4 +2416*x^3 +1191*x^2 +120*x +1) / (x -1)^10 + O(x^100))) \\ Colin Barker, Mar 24 2014

Formula

G.f.: x^2*(x^6 + 120*x^5 + 1191*x^4 + 2416*x^3 + 1191*x^2 + 120*x + 1) / (x-1)^10. - Colin Barker, Mar 24 2014