%I
%S 23,67,89,131132133134135136137138139140141
%N Primes formed by concatenating n consecutive increasing numbers starting with a palindrome and ending with the next consecutive palindrome.
%C The next term, a(5) = 90809...90909, has 505 digits.  _M. F. Hasler_, Sep 11 2018
%o (PARI) P=1; until(, N=P; for(x=1+P, P=A262038(1+P), N=N*10^(logint(x, 10)+1)+x); ispseudoprime(N)&& print(N",")) \\ _M. F. Hasler_, Sep 11 2018
%Y Cf. A000040, A002113.
%K base,nonn
%O 1,1
%A _G. L. Honaker, Jr._, Jan 16 2000
