Twin prime pairs of the form (k^2 + k - 1, k^2 + k + 1).

Terms

a(0) =5a(1) =7a(2) =11a(3) =13a(4) =29a(5) =31a(6) =41a(7) =43a(8) =71a(9) =73a(10) =239a(11) =241a(12) =419a(13) =421a(14) =461a(15) =463a(16) =599a(17) =601a(18) =1481a(19) =1483a(20) =1721a(21) =1723a(22) =2549a(23) =2551a(24) =2969a(25) =2971a(26) =3539a(27) =3541a(28) =4421a(29) =4423