Primes p such that p^7 - 1 has 8 divisors.

Terms

a(0) =863a(1) =1439a(2) =2039a(3) =3167a(4) =3803a(5) =4799a(6) =10559a(7) =11423a(8) =14087a(9) =14207a(10) =15287a(11) =15803a(12) =16139a(13) =18743a(14) =20663a(15) =21059a(16) =21179a(17) =22343a(18) =25307a(19) =25919a(20) =26459a(21) =29483a(22) =29759a(23) =30803a(24) =32507a(25) =32987a(26) =33107a(27) =34319a(28) =34367a(29) =35879