# A150144 (b-file synthesized from sequence entry)
0 1
1 2
2 6
3 20
4 73
5 283
6 1142
7 4755
8 20265
9 88008
10 388019
11 1732149
12 7813150
13 35552366
14 162990372
15 752066174
16 3489693468
17 16272504647
18 76209077491
19 358289119715
20 1690271229450
21 7998758682268
22 37957799055769
23 180583561604053
24 861103635616171
25 4114776349709555
26 19700383492079739
27 94487342382880327