# A293710 (b-file synthesized from sequence entry)
0 0
1 0
2 1
3 4
4 20
5 97
6 472
7 2296
8 11169
9 54332
10 264300
11 1285697
12 6254320
13 30424368
14 148000449
15 719953588
16 3502240516
17 17036776865
18 82876023112
19 403153440424
20 1961154631009
21 9540108308844
22 46408205199836
23 225754408665729
24 1098190563771104
25 5342188094947168