The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A262640 Base-10 representation of the primes at A262639. 4
 3, 29, 373, 104281, 26834329, 912643687, 1226640300497, 98267311812235733, 1020860032010008425847, 21115310556546915420698449, 1012916271690222867857136967, 26879969170345514485602194376469, 19901192726231131838758996344598879 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Clark Kimberling, Table of n, a(n) for n = 1..300 EXAMPLE n A262639(n) base-10 representation 1 3 3 2 131 29 3 11311 373 MATHEMATICA s = {3}; 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 (* A262639 *) Map[FromDigits[ToString[#], base] &, s] (* A262640 *) (* Peter J. C. Moses, Sep 01 2015 *) CROSSREFS Cf. A262639. Sequence in context: A081506 A168127 A361220 * A302582 A335867 A302923 Adjacent sequences: A262637 A262638 A262639 * A262641 A262642 A262643 KEYWORD nonn,easy,base AUTHOR Clark Kimberling, Oct 24 2015 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified June 8 15:33 EDT 2023. Contains 363165 sequences. (Running on oeis4.)