# A038515 (b-file synthesized from sequence entry)
0 1
1 0
2 0
3 6
4 12
5 120
6 564
7 4074
8 25008
9 174618
10 1181100
11 8358306
12 59167872
13 427081512
14 3103408308
15 22797207330
16 168616517760
17 1256350493196