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

Terms

a(0) =2a(1) =3a(2) =619a(3) =1123a(4) =3373a(5) =4603a(6) =6829a(7) =9067a(8) =18973a(9) =25933a(10) =29179a(11) =29741a(12) =33211a(13) =40583a(14) =48313a(15) =72923a(16) =74923a(17) =117991a(18) =130973a(19) =202201a(20) =231067a(21) =253993a(22) =255217a(23) =267317a(24) =291491a(25) =339139a(26) =346309a(27) =363829a(28) =423191a(29) =449621