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%I #25 Nov 18 2014 12:57:32
%S 1,2,4,7,7,12,13,16,16,13,18,12,11,6,4,1,0
%N a(n) = number of 3-digit primes with digit sum n, where n runs through the non-multiples of 3 in the range [2..26].
%H BigPrimes.net, <a href="http://www.bigprimes.net/sum-of-digits/">Digit sums of primes</a>
%e Digit-sums of 3-digit primes
%e Sum count
%e 2 1
%e 4 2
%e 5 4
%e 7 7
%e 8 7
%e 10 12
%e 11 13
%e 13 16
%e 14 16
%e 16 13
%e 17 18
%e 19 12
%e 20 11
%e 22 6
%e 23 4
%e 25 1
%e 26 0
%Y For 2- through 9-digit primes the counts are in A177868, A178183, A178447, A178571, A178605, A178876, A178879, A178884.
%Y Cf. 3rd row of A178701.
%K nonn,base,fini,full
%O 1,2
%A _N. J. A. Sloane_, Dec 28 2010
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