Integers n such that p = 4n + 1, q = 4p + 3, r = 4q + 5, s = 4r + 7 and t = 4s + 9 are all prime.

Terms

a(0) =1564a(1) =4057a(2) =4654a(3) =5884a(4) =26599a(5) =30139a(6) =37204a(7) =66532a(8) =74227a(9) =80812a(10) =98137a(11) =113929a(12) =124249a(13) =138604a(14) =245524a(15) =249847a(16) =250879a(17) =299767a(18) =309469a(19) =315277a(20) =340504a(21) =346279a(22) =359467a(23) =362674a(24) =367069a(25) =401407a(26) =410332a(27) =435049a(28) =437377a(29) =438799