Smallest safe prime ((p-1)/2 is also prime) > n.

Terms

a(0) =5a(1) =5a(2) =5a(3) =5a(4) =7a(5) =7a(6) =11a(7) =11a(8) =11a(9) =11a(10) =23a(11) =23a(12) =23a(13) =23a(14) =23a(15) =23a(16) =23a(17) =23a(18) =23a(19) =23a(20) =23a(21) =23a(22) =47a(23) =47a(24) =47a(25) =47a(26) =47a(27) =47a(28) =47a(29) =47