# A073404 (b-file synthesized from sequence entry)
0 2
1 12
2 36
3 96
4 672
5 1056
6 864
7 10752
8 40416
9 43968
10 8064
11 156672
12 1051776
13 2815488
14 2396160
15 76032
16 2121984
17 22125312
18 105981696
19 226492416
20 161879040
21 718848
22 27205632
23 404656128
24 2995605504