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.

Showing 1-1 of 1 results.

A287708 Indices of records in A287434.

Original entry on oeis.org

1, 2, 5, 11, 14, 19, 64, 102, 111, 131, 270, 299, 1906, 3164, 6551, 8448, 15601, 49320, 110476, 120698, 191270, 274190, 360430
Offset: 1

Views

Author

Amiram Eldar, May 30 2017

Keywords

Comments

The odd version of A287636. The corresponding denominators are 45, 24885, 340725, 1652115781968795, ... The denominator that corresponds to a(23) has 763921483 digits.

Crossrefs

Programs

  • Mathematica
    odd[n_]:=If[OddQ[n],n,n+1];a={};dmax=0;n=1;While[Length[a]<25,dlast=0; k=2n/(2n+1); s1=0; While[k>0,s2=odd[Ceiling[1/k]]; If[s2==s1,s2+=2]; dlast=s2; k=k-1/s2; s1=s2]; If[dlast>dmax,dmax=dlast;a=AppendTo[a,n]];n++];a
Showing 1-1 of 1 results.