# A143010 (b-file synthesized from sequence entry)
0 1
1 41
2 661
3 5741
4 33001
5 142001
6 494341
7 1465661
8 3833941
9 9073501
10 19789001
11 40328641
12 77620661
13 142282141
14 250054001
15 423621001
16 694880441
17 1107728161
18 1721435341
19 2614694501
20 3890418001
21 5681377241
22 8156775661
23 11529853541