%I #23 Sep 18 2015 15:42:09
%S 1,2,2,2,3,3,3,1,1,2,1
%N a(n) = number of 2-digit primes with digit sum n, where n runs through the non-multiples of 3 in the range [2..17].
%H <a href="/A177868/b177868.txt">Table of n, a(n) for n = 1..11</a>
%H BigPrimes.net, <a href="http://www.bigprimes.net/sum-of-digits/">Digit sums of primes</a>
%e Digital sums of 2-digit primes
%e Sum count
%e 2 1
%e 4 2
%e 5 2
%e 7 2
%e 8 3
%e 10 3
%e 11 3
%e 13 1
%e 14 1
%e 16 2
%e 17 1
%Y For 2- through 9-digit primes the counts are in A177868, A178183, A178447, A178571, A178605, A178876, A178879, A178884.
%Y Cf. 2nd row of A178701.
%K nonn,base,fini,full
%O 1,2
%A _N. J. A. Sloane_, Dec 28 2010