A135316 Primes in A023108(n); or Lychrel primes.

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

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

Table of n, a(n) for n=1..38.

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

More terms from Dmitry Kamenetsky, May 04 2009

Status

approved