Pseudoprimes to base 2 of the form 4k+3.

Terms

a(0) =1387a(1) =2047a(2) =4371a(3) =8911a(4) =13747a(5) =14491a(6) =19951a(7) =42799a(8) =60787a(9) =90751a(10) =123251a(11) =150851a(12) =256999a(13) =258511a(14) =271951a(15) =272251a(16) =275887a(17) =294271a(18) =387731a(19) =396271a(20) =422659a(21) =435671a(22) =443719a(23) =452051a(24) =476971a(25) =514447a(26) =672487a(27) =680627a(28) =741751a(29) =769567