A143483 a(n) = the number of positive integers <= A143482(n) and coprime to A143482(n).

1, 1, 2, 2, 4, 4, 6, 8, 18, 20, 20, 24, 24, 24, 24, 32, 32, 36, 36, 40, 48, 60, 88, 96, 100, 120, 162, 168, 168, 176, 180, 192, 220, 256, 288, 288, 360, 360, 384, 400, 400, 432, 504, 560, 600, 616, 736, 736, 756, 800, 864, 864, 936, 936, 1000, 1008, 1008, 1008