Numbers m such that the numerator of Sum_{k=1..m, gcd(k,m) = 1} 1/k^2 is divisible by m^2.

Terms

a(0) =1a(1) =39a(2) =42a(3) =78a(4) =155a(5) =156a(6) =266a(7) =310a(8) =465a(9) =546a(10) =620a(11) =793a(12) =798a(13) =930a(14) =1092a(15) =1586a(16) =1596a(17) =1638a(18) =1860a(19) =2170a(20) =2184a(21) =2379a(22) =2394a(23) =3172a(24) =3276a(25) =3720a(26) =3965a(27) =4340a(28) =4758a(29) =4788