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.

A262648 Base-10 representation of 0 and the primes at A262647.

Original entry on oeis.org

1, 43, 55987, 102792517, 95125388731, 3981385394034229, 27783887681061330839, 7141162170983023407421, 40050387387887393264626841, 400599026018424027699693461857, 2500775549161597801615214316269999, 35465901730059327498617881373769591811
Offset: 1

Views

Author

Clark Kimberling, Oct 25 2015

Keywords

Examples

			n   A262647(n)    base-10 representation
1     1                  1
2     111                43
3     1111111            55987
		

Crossrefs

Cf. A262647.

Programs

  • Mathematica
    s = {1}; base = 6; z = 20; Do[NestWhile[# + 1 &, 1, ! PrimeQ[tmp = FromDigits[Join[#, IntegerDigits[Last[s]], Reverse[#]] &[IntegerDigits[#, base]], base]] &];
    AppendTo[s, FromDigits[IntegerDigits[tmp, base]]], {z}]; s  (* A262645 *)
    Map[FromDigits[ToString[#], base] &, s]  (* A262646 *)
    (* Peter J. C. Moses, Sep 01 2015 *)