Least number x such that gcd(x, pi(x)) = n.

Terms

a(0) =1a(1) =4a(2) =6a(3) =8a(4) =50a(5) =66a(6) =77a(7) =56a(8) =27a(9) =30a(10) =33a(11) =156a(12) =169a(13) =182a(14) =465a(15) =224a(16) =238a(17) =252a(18) =2299a(19) =1380a(20) =189a(21) =902a(22) =207a(23) =96a(24) =100a(25) =1872a(26) =1323a(27) =2464a(28) =1247a(29) =120