# A100447 (b-file synthesized from sequence entry)
0 2
1 4
2 8
3 20
4 60
5 188
6 632
7 2192
8 7712
9 27596
10 99880
11 364724
12 1342184
13 4971068
14 18512792
15 69273668
16 260301176
17 981706832
18 3714566312
19 14096303344
20 53634713552
21 204560302844
22 781874936816
23 2994414645860
24 11488774559636