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A262632 Base-10 representation of 1 and the primes at A262631. 3
1, 13, 1093, 167309, 1033369, 7883077, 974928839, 685325330447, 384532463201461, 36815155568146289, 229925116170082520417, 148014988051032245586139, 12100604707837079041828993, 1155600708425254785803483981, 1006197859457454560045466031133 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

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

EXAMPLE

n   A262631(n)    base-10 representation

1   1                1

2   111              13

3   1111111          1093

4   22111111122      167309

MATHEMATICA

s = {1}; base = 3; 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  (* A262631 *)

Map[FromDigits[ToString[#], base] &, s]  (* A262632 *)

(* Peter J. C. Moses, Sep 01 2015 *)

CROSSREFS

Cf. A262631.

Sequence in context: A292337 A201118 A282968 * A076481 A185834 A264249

Adjacent sequences:  A262629 A262630 A262631 * A262633 A262634 A262635

KEYWORD

nonn,easy,base

AUTHOR

Clark Kimberling, Oct 02 2015

STATUS

approved

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Last modified May 21 21:43 EDT 2022. Contains 353929 sequences. (Running on oeis4.)