# A150104 (b-file synthesized from sequence entry)
0 1
1 2
2 6
3 19
4 68
5 255
6 989
7 3955
8 16147
9 67057
10 282495
11 1203909
12 5180147
13 22480686
14 98268169
15 432231388
16 1911944862
17 8499084865
18 37945861008
19 170096408313
20 765203667592
21 3453498192794
22 15632819897677
23 70956387986424
24 322865559744975
25 1472499460157086
26 6729929928075598
27 30818993591307189