Primes of the form (k^4 + 1)/2.

Terms

a(0) =41a(1) =313a(2) =1201a(3) =7321a(4) =14281a(5) =41761a(6) =97241a(7) =139921a(8) =353641a(9) =750313a(10) =1156721a(11) =5278001a(12) =6922921a(13) =8925313a(14) =12705841a(15) =14199121a(16) =21523361a(17) =56275441a(18) =60775313a(19) =81523681a(20) =87450313a(21) =100266961a(22) =138461441a(23) =273990641a(24) =370600313a(25) =407865361