A262636 Base-10 representation of 1 and the primes at A262635.

1, 409, 88469, 3499607, 525755773, 1889074241401, 14476124563693171, 3690382506839631667, 944489835647492584243, 17945058791198905978063, 1798278215177468964031733, 17136765345945336793560989047, 39126270988987383599688999460333

Offset

1,2

Links

Clark Kimberling, Table of n, a(n) for n = 1..300

Example

n   A262635(n)    base-10 representation
1   1             1
2   12121         409
3   111212111     88469

Mathematica

s = {1}; base = 4; 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  (* A262635 *)
Map[FromDigits[ToString[#], base] &, s]  (* A262636 *)
(* Peter J. C. Moses, Sep 01 2015 *)

Crossrefs

Cf. A262635. Subsequence of A029972.

Sequence in context: A031601 A107625 A061333 * A238753 A157431 A179129

Adjacent sequences: A262633 A262634 A262635 * A262637 A262638 A262639

Keyword

nonn,base

Author

Clark Kimberling, Oct 02 2015

Status

approved