# A199937 (b-file synthesized from sequence entry)
1 4
2 12
3 36
4 104
5 302
6 868
7 2490
8 7132
9 20424
10 58418
11 167036
12 477412
13 1364340
14 3898236
15 11138194
16 31824012
17 90926724
18 259790792
19 742259560
20 2120727868
21 6059178186
22 17311798890
23 49461883130
24 141318491362
25 403763748824