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.

A279627 Engel expansion of the Glaisher-Kinkelin constant A074962.

Original entry on oeis.org

1, 4, 8, 27, 59, 188, 384, 427, 2525, 71429, 80727, 357492, 13200877, 65161876, 7439912342, 15555881542, 71559279848, 116275866868, 345574982189, 737460049244, 9183275685671, 12641946167319, 126181443702371
Offset: 1

Views

Author

Benedict W. J. Irwin, Dec 16 2016

Keywords

Comments

See A006784 for more details on the Engel expansion.

Examples

			1.2824271291006... = 1/1 + 1/(1*4) + 1/(1*4*8) + 1/(1*4*8*27) + ...
		

Crossrefs

Cf. A074962.

Programs

  • Mathematica
    EngelExp[A_, n_] := Join[Array[1 &, Floor[A]], First@Transpose@NestList[{Ceiling[1/Expand[#[[1]] #[[2]] - 1]], Expand[#[[1]] #[[2]] - 1]} &, {Ceiling[1/(A - Floor[A])], A - Floor[A]}, n - 1]];
    EngelExp[Glaisher, 22]