Primes of the form 2*n^2 + 2*n - 1.

Terms

a(0) =3a(1) =11a(2) =23a(3) =59a(4) =83a(5) =179a(6) =263a(7) =311a(8) =419a(9) =479a(10) =683a(11) =839a(12) =1103a(13) =1511a(14) =2111a(15) =2243a(16) =2663a(17) =2963a(18) =3119a(19) =4139a(20) =4703a(21) =5099a(22) =5303a(23) =5939a(24) =7079a(25) =10223a(26) =11399a(27) =12011a(28) =12323a(29) =12959