Numbers k such that f(k), f(k+1) and f(k+2) are all primes, where f(k) = 8*k^2 + 4*k + 1.

Terms

a(0) =15a(1) =50a(2) =80a(3) =110a(4) =230a(5) =245a(6) =425a(7) =570a(8) =635a(9) =645a(10) =710a(11) =925a(12) =1440a(13) =1645a(14) =1710a(15) =1815a(16) =2000a(17) =2465a(18) =2635a(19) =2940a(20) =3040a(21) =3090a(22) =3195a(23) =3525a(24) =4260a(25) =4310a(26) =4400a(27) =4885a(28) =5960a(29) =6145