Primes of the form (1+p+p^3)/3, p are prime numbers.

Terms

a(0) =2293a(1) =9941a(2) =895253a(3) =2626933a(4) =17298497a(5) =33084437a(6) =47685397a(7) =62056661a(8) =76782337a(9) =144599617a(10) =189907873a(11) =211280213a(12) =258717493a(13) =301410677a(14) =479690273a(15) =630940097a(16) =717228821a(17) =778918037a(18) =1035249013a(19) =1814163413a(20) =1889439157a(21) =2710909781