Smallest odd prime base q such that p^4 divides q^(p-1) - 1, where p = prime(n).

Terms

a(0) =17a(1) =163a(2) =443a(3) =3449a(4) =45989a(5) =239a(6) =15541a(7) =2819a(8) =60793a(9) =78017a(10) =690143a(11) =398023a(12) =1977343a(13) =574081a(14) =1513367a(15) =4388179a(16) =3198427a(17) =8065789a(18) =3246107a(19) =1353383a(20) =5934307a(21) =15631613a(22) =2864371a(23) =14754769a(24) =15012733a(25) =1358891a(26) =32414783a(27) =119551a(28) =21860063a(29) =11281097