# A195538 (b-file synthesized from sequence entry)
1 5
2 12
3 145
4 420
5 4901
6 14280
7 166465
8 485112
9 5654885
10 16479540
11 192099601
12 559819260
13 6525731525
14 19017375312
15 221682772225
16 646030941360
17 7530688524101
18 21946034630940
19 255821727047185
20 745519146510612
21 8690408031080165