Timus Sistem have:
Test1: n = 4
Test2: n = 2
Test3: n = 3

Right answers for n = 15
1 14 3 12 5 10 7 8 9 6 11 4 13 2 15
1 3 5 7 9 11 13 15 14 12 10 8 6 4 2

n = 16
1 15 3 13 5 11 7 9 8 10 6 12 4 14 2 16
1 3 5 7 9 11 13 15 16 14 12 10 8 6 4 2

Enjoy by problem)