cp's OEIS Frontend

A178447 a(n) = number of 4-digit primes with digit sum n, where n runs through the non-multiples of 3 in the range [2..34].

%I A178447 #10 Mar 30 2012 16:51:57
%S A178447 0,4,8,20,19,31,52,67,77,93,101,116,95,92,91,63,51,29,30,16,5,0,1
%N A178447 a(n) = number of 4-digit primes with digit sum n, where n runs through the non-multiples of 3 in the range [2..34].
%H A178447 BigPrimes.net, <a href="//http://www.bigprimes.net/sum-of-digits/">Digit sums of primes</a>
%e A178447 Digit-sums of 4-digit primes
%e A178447 Sum     count
%e A178447 2       0
%e A178447 4       4
%e A178447 5       8
%e A178447 7       20
%e A178447 8       19
%e A178447 10      31
%e A178447 11      52
%e A178447 13      67
%e A178447 14      77
%e A178447 16      93
%e A178447 17      101
%e A178447 19      116
%e A178447 20      95
%e A178447 22      92
%e A178447 23      91
%e A178447 25      63
%e A178447 26      51
%e A178447 28      29
%e A178447 29      30
%e A178447 31      16
%e A178447 32      5
%e A178447 34      0
%e A178447 35      1
%K A178447 nonn,base,fini,full
%O A178447 1,2
%A A178447 _N. J. A. Sloane_, Dec 28 2010