# A164868 (b-file synthesized from sequence entry)
0 1
1 17
2 272
3 4352
4 69632
5 1114112
6 17825792
7 285212672
8 4563402616
9 73014439680
10 1168231000200
11 18691695448320
12 299067118295040
13 4785073750671360
14 76561177737953280
15 1224978807442636800
16 19599660337248356280