# A195578 (b-file synthesized from sequence entry)
1 0
2 3
3 33
4 180
5 611
6 1909
7 2340
8 12567
9 163797
10 879480
11 2996279
12 9346681
13 11463480
14 61551003
15 802279833
16 4307690700
17 14675777531
18 45780038029
19 56148124860
20 301476797967
21 3929566460397
22 21099068166960
23 71881955354159
24 224230616915761