A262636 - OEIS

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A262636

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

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

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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