Numbers k such that (k-1)*binomial(2k,k) + 1 is prime.

Terms

a(0) =2a(1) =3a(2) =4a(3) =5a(4) =6a(5) =7a(6) =9a(7) =13a(8) =17a(9) =18a(10) =22a(11) =23a(12) =28a(13) =31a(14) =48a(15) =49a(16) =52a(17) =80a(18) =99a(19) =167a(20) =201a(21) =295a(22) =372a(23) =381a(24) =391a(25) =638a(26) =653a(27) =720a(28) =779a(29) =887