Smaller of the two consecutive primes whose sum is a triangular number.

Terms

a(0) =17a(1) =37a(2) =59a(3) =103a(4) =137a(5) =149a(6) =313a(7) =467a(8) =491a(9) =883a(10) =911a(11) =1277a(12) =1423a(13) =1619a(14) =1783a(15) =2137a(16) =2473a(17) =2729a(18) =4127a(19) =4933a(20) =5437a(21) =5507a(22) =6043a(23) =6359a(24) =10039a(25) =10453a(26) =11717a(27) =13397a(28) =15809a(29) =17489