a = a(n) is such that the a-th prime p(a) is the least prime with digital sum equal to n, or a(n)=0 if no such prime exists.
A104290
a = a(n) is such that the a-th prime p(a) is the least prime with digital sum equal to n, or a(n)=0 if no such prime exists.
Terms
- a(0) =0a(1) =1a(2) =2a(3) =6a(4) =3a(5) =0a(6) =4a(7) =7a(8) =0a(9) =8a(10) =10a(11) =0a(12) =19a(13) =17a(14) =0a(15) =22a(16) =24a(17) =0a(18) =46a(19) =77a(20) =0a(21) =95a(22) =109a(23) =0a(24) =168a(25) =290a(26) =0a(27) =303a(28) =430a(29) =0
External references
- oeis: A104290