Primes of the form n^6 + n^5 + n^4 + n^3 + n^2 + n + 1.

Terms

a(0) =7a(1) =127a(2) =1093a(3) =19531a(4) =55987a(5) =5229043a(6) =8108731a(7) =25646167a(8) =321272407a(9) =917087137a(10) =3092313043a(11) =4201025641a(12) =9684836827a(13) =31401724537a(14) =47446779661a(15) =52379047267a(16) =83925549247a(17) =100343116693a(18) =141276239497a(19) =153436090543a(20) =265462278481