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

Author

Alexander Adamchuk, Dec 05 2007

Keywords

• nonn
• base

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).

Examples

			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.

Extensions

More terms from Dmitry Kamenetsky, May 04 2009