OFFSET
1,2
LINKS
BigPrimes.net, Digit sums of primes
EXAMPLE
Digit-sums of 9-digit primes
Sum count
2 0
4 2
5 26
7 226
8 372
10 1457
11 3312
13 9159
14 13320
16 32077
17 50752
19 102027
20 138554
22 249053
23 331920
25 535444
26 655423
28 966278
29 1152057
31 1546854
32 1751100
34 2168566
...
CROSSREFS
KEYWORD
nonn,base,fini,full
AUTHOR
N. J. A. Sloane, Dec 28 2010
STATUS
approved