# A096361 (b-file synthesized from sequence entry)
1 1
2 2
3 3
4 12
5 20
6 72
7 168
8 528
9 1440
10 4480
11 13046
12 40008
13 120055
14 366324
15 1109745
16 3380752
17 10269819
18 31253904
19 95011267
20 288979680
21 878550498
22 2671223720
23 8120041693
24 24682865208
25 75020015675
26 227999634772
27 692872971246
28 2105464666676