# A301927 (b-file synthesized from sequence entry)
0 1
1 2
2 4
3 9
4 24
5 77
6 294
7 1296
8 6403
9 34644
10 201932
11 1253513
12 8219110
13 56578239
14 406990651
15 3048202700
16 23700070773
17 190830842843
18 1588016365186
19 13633603416558
20 120574656241999
21 1097006289005674
22 10255338612462641
23 98403208150304070
24 968186766428157206
25 9759036265967791137
26 100690787844977985900
27 1062601625749170026894
28 11461320511629994319890