# A215038 (b-file synthesized from sequence entry)
0 0
1 1
2 5
3 23
4 98
5 418
6 1770
7 7503
8 31779
9 134629
10 570284
11 2415788
12 10233404
13 43349461
14 183631161
15 777874251
16 3295127934
17 13958386366
18 59128672790
19 250473078515
20 1061020985255
21 4494557022121
22 19039249069560
23 80651553307128