Primes in A340180.

Terms

a(0) =2a(1) =2a(2) =7a(3) =23a(4) =19a(5) =43a(6) =137a(7) =139a(8) =239a(9) =283a(10) =373a(11) =491a(12) =1019a(13) =929a(14) =2609a(15) =2699a(16) =1499a(17) =4451a(18) =3191a(19) =4441a(20) =5261a(21) =3251a(22) =6373a(23) =7853a(24) =8623a(25) =9013a(26) =6359a(27) =10289a(28) =9109a(29) =6833