%I
%S 1,3,7,19,9,13,27,11,29,21,17,23,61,33,31,37,41,47,49,39,43,51,57,59,
%T 79,63,53,87,69,67,81,71,73,91,83,77,93,89,103,99,113,97,117,101,119,
%U 133,111,109,121,123,131,127,129,139,147,149,107,151,141,161,153,137,179
%N Smallest number k not included earlier such that the concatenation n, k is a prime.
%C Another rearrangement of odd numbers not == 0 mod 5.
%e a(4) = 19. Though 41, 43 and 47 are prime 1, 3 and 7 have been included earlier and also 49, 411, 413 and 417 are not prime hence 419 is the required prime.
%Y Cf. A088630.
%K base,nonn
%O 1,2
%A _Amarnath Murthy_, Oct 21 2003
%E More terms from _Ray G. Opao_, Aug 19 2004
