# A369074 (b-file synthesized from sequence entry)
0 1
1 1
2 1
3 4
4 8
5 50
6 144
7 1416
8 4956
9 73776
10 257040
11 5945376
12 27326592
13 741487104
14 2932516224
15 131001886656
16 638526753792
17 29531870206848