Smallest number k such that gcd(phi(k), k-1) = n * lambda(k).

Terms

a(0) =1a(1) =2465a(2) =314821a(3) =15841a(4) =658801a(5) =41041a(6) =21584305a(7) =8830801a(8) =8911a(9) =11205601a(10) =3193414093a(11) =1729a(12) =9653421961a(13) =1193229577a(14) =1232469001a(15) =69331969a(16) =1419339691a(17) =46657a(18) =587034735001a(19) =9439201a(20) =64774081a(21) =67047668161a(22) =100929219805a(23) =7995169a(24) =1894344001a(25) =212027401a(26) =67371265a(27) =3057601