# A371743 (b-file synthesized from sequence entry)
0 1
1 4
2 29
3 231
4 1926
5 16491
6 143683
7 1267395
8 11282393
9 101151544
10 912011633
11 8260998772
12 75115815749
13 685232639419
14 6268299350776
15 57478389714473
16 528167137069958
17 4862304525663579
18 44836026545219765
19 414048025058547788
20 3828677665694353049