a(n) = min( x : x^4 + n^4 = 0 mod (x+n-1) ).

Terms

a(0) =1a(1) =16a(2) =95a(3) =334a(4) =877a(5) =12a(6) =3691a(7) =66a(8) =10649a(9) =16552a(10) =31a(11) =6a(12) =49285a(13) =66964a(14) =89027a(15) =2a(16) =149041a(17) =216a(18) =13823a(19) =22a(20) =93a(21) =20a(22) =30219a(23) =170a(24) =113a(25) =847576a(26) =988391a(27) =1146070a(28) =77733a(29) =948