# A221101 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 12
4 144
5 3160
6 118380
7 7174188
8 692356896
9 104696597808
10 24680489921280
11 9010186432576560
12 5073501307520289600
13 4385657278007399474496
14 5797249519065509217375936
15 11674185903250032386477342880
16 35692663320428574506107140979200