Pseudoprimes to base 2 of the form 4k+1.

Terms

a(0) =341a(1) =561a(2) =645a(3) =1105a(4) =1729a(5) =1905a(6) =2465a(7) =2701a(8) =2821a(9) =3277a(10) =4033a(11) =4369a(12) =4681a(13) =5461a(14) =6601a(15) =7957a(16) =8321a(17) =8481a(18) =10261a(19) =10585a(20) =11305a(21) =12801a(22) =13741a(23) =13981a(24) =15709a(25) =15841a(26) =16705a(27) =18705a(28) =18721a(29) =23001