Numbers n such that n^1+n+1, n^2+n+1, n^3+n+1 and n^4+n+1 are all prime.

Terms

a(0) =1a(1) =2a(2) =5a(3) =6a(4) =69a(5) =131a(6) =426a(7) =1665a(8) =2129a(9) =2696a(10) =5250a(11) =7929a(12) =9689a(13) =13545a(14) =14154a(15) =14286a(16) =16434a(17) =19760a(18) =25739a(19) =27809a(20) =29631a(21) =36821a(22) =41819a(23) =46619a(24) =48321a(25) =59030a(26) =60500a(27) =61955a(28) =62321a(29) =73610