1 1.0000000000
11 0.3221225472
21 0.0576460752
31 0.0086655803
41 0.0011963052
51 0.0001569972
61 0.0000199224
71 0.0000024683
81 0.0000003004
91 0.0000000360
101 0.0000000043
111 0.0000000005
121 0.0000000001
131 0.0000000000
141 0.0000000000
151 0.0000000000