Greatest prime factor of 2*n^4 + 1.

Terms

a(0) =3a(1) =11a(2) =163a(3) =19a(4) =139a(5) =2593a(6) =1601a(7) =2731a(8) =1193a(9) =113a(10) =227a(11) =619a(12) =577a(13) =8537a(14) =73a(15) =43691a(16) =55681a(17) =209953a(18) =307a(19) =9697a(20) =388963a(21) =52057a(22) =1091a(23) =337a(24) =260417a(25) =304651a(26) =3011a(27) =4937a(28) =471521a(29) =1620001