# A150051 (b-file synthesized from sequence entry)
0 1
1 2
2 6
3 18
4 61
5 220
6 831
7 3242
8 12963
9 53065
10 221135
11 935161
12 4004490
13 17340560
14 75815025
15 334224425
16 1484309666
17 6635773200
18 29842139692
19 134917595387
20 612911928917
21 2796639896767
22 12811932226760
23 58909390903603
24 271782665024151
25 1257810137283149
26 5837979125851679
27 27169010031402123