Primes of the form (1+2n+3n^2+4n^3)/2.

Terms

a(0) =5a(1) =71a(2) =293a(3) =7103a(4) =32213a(5) =40487a(6) =50069a(7) =87623a(8) =161831a(9) =211007a(10) =238949a(11) =337343a(12) =852263a(13) =922037a(14) =1328447a(15) =1421909a(16) =1955399a(17) =2607989a(18) =3061703a(19) =3744551a(20) =4121087a(21) =4318469a(22) =4731941a(23) =5400359a(24) =5879231a(25) =7198421a(26) =9356927a(27) =10400501a(28) =10764863