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.

A289033 Decimal expansion of the limiting ratio of consecutive terms of A288237.

Original entry on oeis.org

1, 7, 5, 4, 8, 7, 7, 6, 6, 6, 6, 9, 4, 3, 6, 8, 8, 4, 2, 7, 7, 3, 5, 7, 2, 6, 1, 1, 2, 3, 8, 9, 7, 2, 3, 2, 9, 2, 3, 1, 2, 3, 6, 2, 6, 8, 3, 9, 7, 7, 3, 4, 3, 2, 0, 7, 2, 5, 7, 8, 4, 6, 7, 9, 4, 7, 7, 7, 3, 0, 6, 0, 1, 7, 8, 2, 1, 1, 4, 6, 3, 0, 5, 3, 4, 1
Offset: 1

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Author

Clark Kimberling, Jul 14 2017

Keywords

Examples

			1.7548776666...
		

Crossrefs

Cf. A288237, A078140 (includes guide to related constants).

Programs

  • Mathematica
    z = 2000; r = -4/5 + Sqrt[11/4];
    u = CoefficientList[Series[1/Sum[Floor[(k + 1)*r] (-x)^k, {k, 0, z}], {x, 0, z}], x];  (* A288237 *)
    v = N[u[[z]]/u[[z - 1]], 200]
    RealDigits[v, 10][[1]](* A289033 *)