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.

A078980 Numerators of continued fraction convergents to sinh(1).

Original entry on oeis.org

1, 6, 7, 20, 47, 114, 161, 436, 3213, 16501, 19714, 36215, 55929, 148073, 352075, 6837498, 7189573, 21216644, 28406217, 220060163, 248466380, 468526543, 4465205267, 4933731810, 19266400697, 24200132507, 43466533204, 111133198915
Offset: 0

Views

Author

Benoit Cloitre, Dec 20 2002

Keywords

Crossrefs

Cf. A068139 (continued fraction), A073742 (decimal expansion), A078981 (denominators).

Programs

  • Mathematica
    Numerator[Convergents[Sinh[1],30]] (* Harvey P. Dale, May 09 2013 *)
  • PARI
    a(n)=component(component(contfracpnqn(contfrac(sinh(1),n+1)),1),1)

Extensions

Offset changed by Andrew Howroyd, Aug 05 2024