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.

Showing 1-2 of 2 results.

A020069 Integer part of Gamma(n+1/9)/Gamma(1/9).

Original entry on oeis.org

1, 0, 0, 0, 0, 3, 17, 104, 740, 6005, 54717, 553253, 6147263, 74450193, 976124760, 13774204958, 208143541601, 3353423725801, 57380805974819, 1039230152655057, 19860842917407765, 399423618672311729
Offset: 0

Views

Author

Keywords

Crossrefs

Programs

  • Magma
    [Truncate(Gamma(n+1/9)/Gamma(1/9)): n in [0..25]]; // G. C. Greubel, Nov 13 2019
    
  • Maple
    Digits := 64:f := proc(n,x) trunc(GAMMA(n+x)/GAMMA(x)); end;
    seq(trunc(pochhammer(1/9,n)), n = 0..25); # G. C. Greubel, Nov 13 2019
  • Mathematica
    IntegerPart[Pochhammer[1/9, Range[0, 25]]] (* G. C. Greubel, Nov 13 2019 *)
  • PARI
    P(n,x) = gamma(x+n)/gamma(x);
    vector(26, n, truncate(P(n-1, 1/9)) ) \\ G. C. Greubel, Nov 13 2019
    
  • Sage
    [int(rising_factorial(1/9, n)) for n in (0..25)] # G. C. Greubel, Nov 13 2019

A020024 Nearest integer to Gamma(n + 1/9)/Gamma(1/9).

Original entry on oeis.org

1, 0, 0, 0, 1, 3, 17, 104, 740, 6006, 54717, 553254, 6147264, 74450194, 976124761, 13774204959, 208143541601, 3353423725801, 57380805974819, 1039230152655058, 19860842917407766, 399423618672311730
Offset: 0

Views

Author

Keywords

Comments

Gamma(n + 1/9)/Gamma(1/9) = 1, 1/9, 10/81, 190/729, 5320/6561, 196840/59049, 9054640/531441, 498005200/4782969, ... - R. J. Mathar, Sep 04 2016

Crossrefs

Programs

  • Magma
    [Round(Gamma(n +1/9)/Gamma(1/9)): n in [0..30]]; // G. C. Greubel, Feb 03 2018
  • Maple
    Digits := 64:f := proc(n,x) round(GAMMA(n+x)/GAMMA(x)); end;
  • Mathematica
    Table[Round[Gamma[n + 1/9]/Gamma[1/9]], {n, 0, 50}] (* G. C. Greubel, Feb 03 2018 *)
  • PARI
    for(n=0,30, print1(round(gamma(n+1/9)/gamma(1/9)), ", ")) \\ G. C. Greubel, Feb 03 2018
    
Showing 1-2 of 2 results.