Smallest of four consecutive primes whose sum is a triangular number.

Terms

a(0) =5a(1) =23a(2) =191a(3) =389a(4) =449a(5) =2593a(6) =3011a(7) =5167a(8) =5639a(9) =5851a(10) =8669a(11) =18839a(12) =25463a(13) =26953a(14) =28843a(15) =38561a(16) =47963a(17) =51907a(18) =57859a(19) =65419a(20) =67789a(21) =77711a(22) =78301a(23) =79889a(24) =96013a(25) =102023a(26) =128119a(27) =139501a(28) =163417a(29) =192037