# A022490 (b-file synthesized from sequence entry)
1 1
2 2
3 3
4 6
5 11
6 29
7 90
8 447
9 2777
10 21492
11 189275
12 1875602
13 20491475
14 244801738
15 3171481173
16 44283667569
17 662856700938
18 10587645550783
19 179737770922111
20 3231504327224830