# A096421 (b-file synthesized from sequence entry)
1 1
2 1
3 2
4 4
5 12
6 24
7 88
8 224
9 720
10 1792
11 7200
12 16512
13 69952
14 185984
15 608896
16 1797120
17 7495424
18 17936896
19 79457792
20 211576832
21 742306816
22 2190231552
23 9482688512
24 23198867456
25 97967427584
26 285227057152
27 1046412681216
28 3019819909120