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.

A063190 Engel expansion of Sum_{k>=0} 1/(7 + k)^k.

Original entry on oeis.org

1, 8, 10, 14, 36, 45, 88, 102, 114, 432, 4369, 9183, 15670, 31307, 103514, 511249, 1673274, 2394998, 3225410, 4732293, 54612351, 55335052, 220482735, 39208626697, 290846809341, 296349507792, 2280942643369, 2891972596111
Offset: 1

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Author

Olivier Gérard, Jul 10 2001

Keywords

Comments

Shgz(7) = 1.1384182162015123957749881105729298508...

Crossrefs

Cf. A006784 for definition of Engel expansion.

Programs

  • Mathematica
    ToEngel[ x_, n_Integer ] := Rest@First@Transpose@NestList[ {Ceiling[ 1/# ], #}&[ Times@@#-1 ]&, {1, Abs[ x ]+1}, n ]