# A030894 (b-file synthesized from sequence entry)
1 1
2 2
3 8
4 34
5 170
6 1024
7 7173
8 57385
9 516468
10 5164680
11 56811482
12 681737791
13 8862591291
14 124076278077
15 1861144171155
16 29778306738485
17 506231214554248
18 9112161861976473
19 173131075377552995
20 3462621507551059902