# A357207 (b-file synthesized from sequence entry)
0 1
1 1
2 7
3 55
4 469
5 4307
6 41678
7 418872
8 4330275
9 45754091
10 491916135
11 5364166402
12 59186372395
13 659556170091
14 7412556531714
15 83921355689635
16 956228695216241
17 10957322339242547
18 126189988012692329
19 1459793848341094130
20 16955390069787782159
21 197653935181097885580