# A202830 (b-file synthesized from sequence entry)
0 1
1 2
2 7
3 26
4 115
5 542
6 2809
7 15374
8 89737
9 548450
10 3519799
11 23493098
12 163139563
13 1172030654
14 8706504265
15 66638295998
16 525069283921
17 4248776775746
18 35276087031463
19 299986119953210
20 2610709200699811
21 23220585598592222
22 210915850841272537
23 1954390351189631726