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%I #3 Oct 02 2013 15:47:26
%S 3,31,631,10631,19531891183017701711,665545362821,
%T 7140702169036786667065556441,
%U 1178111628114761132511175110261087810731,0,55453628211510631
%N Smallest prime formed by reverse concatenation of n consecutive triangular numbers, 0 if no such prime exists.
%e a(3)=631 because 631 is the smallest prime formed by reverse concatenation of 3 consecutive triangular numbers i.e. 1,3 and 6.
%K base,nonn
%O 1,1
%A _Shyam Sunder Gupta_, Apr 25 2005
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