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.

A279637 Exponential transform of the fourth powers A000583.

Original entry on oeis.org

1, 1, 17, 130, 1445, 19676, 288517, 4768240, 86825545, 1707427792, 36133006121, 817372392464, 19631012216653, 498360729728512, 13320962518548973, 373554936371438896, 10956734043885307793, 335251566923262901760, 10675684185273726205393, 353052079426340899698736
Offset: 0

Views

Author

Alois P. Heinz, Dec 16 2016

Keywords

Crossrefs

Column k=4 of A279636.
Cf. A000583.

Programs

  • Maple
    a:= proc(n) option remember; `if`(n=0, 1,
          add(binomial(n-1, j-1)*j^4*a(n-j), j=1..n))
        end:
    seq(a(n), n=0..25);

Formula

E.g.f.: exp(exp(x)*(x^4+6*x^3+7*x^2+x)).