A178447 - OEIS

%I #10 Mar 30 2012 16:51:57

%S 0,4,8,20,19,31,52,67,77,93,101,116,95,92,91,63,51,29,30,16,5,0,1

%N 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 BigPrimes.net, <a href="//http://www.bigprimes.net/sum-of-digits/">Digit sums of primes</a>

%e Digit-sums of 4-digit primes

%e Sum     count

%e 2       0

%e 4       4

%e 5       8

%e 7       20

%e 8       19

%e 10      31

%e 11      52

%e 13      67

%e 14      77

%e 16      93

%e 17      101

%e 19      116

%e 20      95

%e 22      92

%e 23      91

%e 25      63

%e 26      51

%e 28      29

%e 29      30

%e 31      16

%e 32      5

%e 34      0

%e 35      1

%K nonn,base,fini,full

%O 1,2

%A _N. J. A. Sloane_, Dec 28 2010