Smallest prime p such that n is a solution mod p of x^4 = 2, or 0 if no such prime exists.

Terms

a(0) =7a(1) =79a(2) =127a(3) =7a(4) =647a(5) =2399a(6) =23a(7) =937a(8) =4999a(9) =14639a(10) =1481a(11) =28559a(12) =19207a(13) =23a(14) =31a(15) =47a(16) =73a(17) =18617a(18) =79999a(19) =194479a(20) =117127a(21) =5711a(22) =165887a(23) =73a(24) =4663a(25) =113a(26) =233a(27) =707279a(28) =47a(29) =40153