# A044047 (b-file synthesized from sequence entry)
0 0
1 0
2 0
3 1
4 2
5 12
6 56
7 282
8 1365
9 6666
10 32002
11 153350
12 731156
13 3480594
14 16546884
15 78644579
16 373813930
17 1777680136
18 8459543997
19 40290717546
20 192072529566
21 916541991433
22 4378019950311
23 20933668637794
24 100196639221232