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 A135316 Primes in A023108(n); or Lychrel primes. 0
 691, 887, 1997, 3583, 3673, 3853, 3943, 4079, 4259, 4349, 4799, 4889, 5581, 5851, 6257, 6977, 8089, 8179, 8269, 8539, 8629, 8719, 10663, 10883, 11777, 11833, 11867, 11923, 11953, 11959, 12097, 12763, 12823, 13397, 13523, 13553, 13597, 13633 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS A023108(n) = Positive integers which apparently never result in a palindrome under repeated applications of the function f(x) = x + (x with digits reversed). LINKS EXAMPLE A023108(n) begins {196, 295, 394, 493, 592, 689, 691, 788, 790, 879, 887, ...}. Thus a(1) = 691 which is the first prime in A023108(n), a(2) = 887 which is the second prime in A023108(n). CROSSREFS Cf. A023108, A088753. Sequence in context: A159283 A106281 A127341 * A160500 A327448 A046753 Adjacent sequences:  A135313 A135314 A135315 * A135317 A135318 A135319 KEYWORD nonn,base AUTHOR Alexander Adamchuk, Dec 05 2007 EXTENSIONS Added more terms. Dmitry Kamenetsky, May 04 2009 STATUS approved

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Last modified September 21 16:31 EDT 2021. Contains 347598 sequences. (Running on oeis4.)