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%I #21 Apr 24 2017 10:52:07
%S 11,167,1427,12227,111227,11117213,11111117,1111111411,11111111917,
%T 111111118319,1111111111717,11111111132923,111111111114823,
%U 1111111111113823,11111111111111923,111111111111112319,1111111111111116223,11111111111111121119,111111111111111111523
%N Smallest prime in which the digit string can be partitioned into n+1 parts (only nonzero parts allowed) such that the sum of the first n parts = the (n+1)th one.
%e a(1) = 11, 1 = 1.
%e a(2) = 167, 1+6 = 7
%e a(3) = 1427, 1+4+2 = 7.
%e a(4) = 12227, 1+2+2+2 = 7.
%e a(5) = 111227, 1+1+1+2+2 = 7.
%e a(6) = 11117213, 1+1+1+1+7+2 = 13.
%e a(7) = 11111117, 1+1+1+1+1+1+1 = 7.
%e a(8) = 1111111411, 1+1+1+1+1+1+1+4 = 11.
%Y Cf. A088291, A088292.
%K base,nonn
%O 1,1
%A _Amarnath Murthy_, Sep 30 2003
%E a(6)-a(8) from _Randy L. Ekl_, Jan 08 2017
%E Offset corrected by _Omar E. Pol_, Jan 09 2017
%E a(9)-a(19) from _Giovanni Resta_, Apr 24 2017
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