# A149401 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 12
4 51
5 190
6 802
7 3356
8 14562
9 64178
10 285563
11 1289048
12 5867405
13 26897377
14 124355469
15 577261044
16 2696986274
17 12649353895
18 59567612679
19 281586404327
20 1334914705198
21 6348129828108
22 30264057313283
23 144617531435220
24 692610958926307
25 3323350481472771
26 15976197017662252
27 76929032013370252