n solutions seconds
0 1 8.2e-08
1 1 1.1335e-05
2 0 6.33e-07
3 0 5.26e-07
4 2 4.58e-07
5 10 9.06e-07
6 4 1.288e-06
7 40 4.167e-06
8 92 1.3062e-05
9 352 5.0165e-05
10 724 0.000208399
11 2680 0.000951379
12 14200 0.00508106
13 73712 0.0276108
14 365596 0.165859
15 2279184 1.01564
16 14772512 6.80677
17 95815104 47.1228
18 666090624 361.544
19 4968057848 61108.9