a(n) = smallest prime q of form q=-1+(p+1)*10^w, where p is n-th prime, or 0 if there is no such prime.
A055785
a(n) = smallest prime q of form q=-1+(p+1)*10^w, where p is n-th prime, or 0 if there is no such prime.
Terms
- a(0) =29a(1) =0a(2) =59a(3) =79a(4) =1199999a(5) =139a(6) =179a(7) =199a(8) =239a(9) =2999a(11) =379a(12) =419a(13) =439a(14) =479a(15) =5399a(16) =599a(17) =619a(18) =679999a(19) =719a(20) =739a(21) =79999a(22) =839a(23) =8999
External references
- oeis: A055785