# A365124 (b-file synthesized from sequence entry)
0 1
1 4
2 22
3 156
4 1209
5 10020
6 86724
7 775044
8 7096652
9 66232980
10 627749066
11 6025752664
12 58459917618
13 572315274540
14 5646713239840
15 56091780016288
16 560513824012020
17 5630664768126388
18 56829055796539462
19 575981263878482204
20 5859952654335118851