# A251658 (b-file synthesized from sequence entry)
1 1
2 3
3 13
4 75
5 471
6 3273
7 26916
8 262027
9 2851375
10 33353433
11 422098711
12 5947420449
13 94264842933
14 1637995975164
15 29950444958268
16 558160521126939
17 10427042476673645
18 194220965933772135
19 3611256888560663173
20 67328916459842949045
21 1266687562134302300334
22 24238971105618591823339