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 A097617 8-digit primes formed by concatenating the first decimal digits of {2^n, ..., 9^n} with the n's given by A097616. 2
 23456789, 21443183, 21442591, 19351159, 31126343, 24541211, 18181117, 31136533, 81711361, 28441117, 11352151, 53311211, 23831321, 38123257, 26641313, 88617157, 71517241, 11262533, 91911691, 21442381, 13174321 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS The sequence contains exactly 1127 distinct primes as proved by Eising et al., 2015. LINKS Rick L. Shepherd, Table of n, a(n) for n = 1..10000 J. Eising, D. Radcliffe, and J. Top. A Simple Answer to Gelfand’s Question. American Mathematical Monthly 122:3 (2015), 234-245. Eric Weisstein's World of Mathematics, Gelfand's Question CROSSREFS Cf. A097616. Sequence in context: A105238 A252396 A236366 * A160402 A243364 A104951 Adjacent sequences: A097614 A097615 A097616 * A097618 A097619 A097620 KEYWORD nonn,base AUTHOR Eric W. Weisstein, Aug 16 2004 STATUS approved

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Last modified December 1 17:49 EST 2022. Contains 358475 sequences. (Running on oeis4.)