Lesser of consecutive primes whose average is of the form k*(k+2), for some integer k.

Terms

a(0) =13a(1) =97a(2) =113a(3) =193a(4) =283a(5) =397a(6) =479a(7) =673a(8) =953a(9) =1439a(10) =1597a(11) =2297a(12) =2699a(13) =3469a(14) =4219a(15) =4483a(16) =5323a(17) =7219a(18) =8273a(19) =9209a(20) =9403a(21) =10799a(22) =12097a(23) =13219a(24) =14879a(25) =15373a(26) =15619a(27) =21313a(28) =23399a(29) =26237