# A177448 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 13
4 166
5 3324
6 92718
7 3354712
8 150206430
9 8050991676
10 504049958320
11 36172232930282
12 2931474921768206
13 265078092222575572
14 26480336590135734816
15 2898139377307388441520
16 345055687960080723910286