Smallest prime whose digital sum is equal to the n-th composite number not congruent to 0 (modulo 3).
A111380
Smallest prime whose digital sum is equal to the n-th composite number not congruent to 0 (modulo 3).
Terms
- a(0) =13a(1) =17a(2) =19a(3) =59a(4) =79a(5) =389a(6) =499a(7) =997a(8) =1889a(9) =1999a(10) =6899a(11) =17989a(12) =8999a(13) =39989a(14) =49999a(15) =98999a(16) =199999a(17) =598999a(18) =599999a(19) =799999a(20) =2998999a(21) =2999999a(22) =4999999a(23) =9899999a(24) =19999999a(25) =29999999a(26) =59999999a(27) =189997999a(28) =389999999a(29) =689899999
External references
- oeis: A111380