# A056319 (b-file synthesized from sequence entry)
1 0
2 0
3 3
4 18
5 78
6 270
7 921
8 2898
9 9147
10 27987
11 85773
12 259557
13 785778
14 2366892
15 7128120
16 21425040
17 64382550
18 193316685
19 580372293
20 1741819245
21 5227115454
22 15684238080
23 47059266081
24 141189599250