# A107413 (b-file synthesized from sequence entry)
0 0
1 1
2 1
3 2
4 3
5 15
6 94
7 641
8 4399
9 30232
10 207793
11 1428251
12 9817006
13 67476683
14 463797507
15 3187888306
16 21911786295
17 150609536029
18 1035206899050
19 7115441373087
20 48907620283741
21 336164012378182
22 2310606047944781