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Natural numbers n that can be partitioned as sum of k primes, where k is the number of decimal digits of n.
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%I #3 Mar 30 2012 18:40:02

%S 2,3,5,7,12,13,14,15,16,18,19,20,21,22,24,25,26,28,30,31,32,33,34,36,

%T 38,39,40,42,43,44,45,46,48,49,50,52,54,55,56,58,60,61,62,63,64,66,68,

%U 69,70,72,73,74,75,76,78,80,81,82,84,85,86,88,90,91,92,94,96,98

%N Natural numbers n that can be partitioned as sum of k primes, where k is the number of decimal digits of n.

%K base,nonn

%O 1,1

%A _Giovanni Teofilatto_, Feb 22 2006