# A099464 (b-file synthesized from sequence entry)
0 0
1 1
2 7
3 44
4 274
5 1705
6 10609
7 66012
8 410744
9 2555757
10 15902591
11 98950096
12 615693474
13 3831006429
14 23837527729
15 148323355432
16 922906855808
17 5742568741225
18 35731770264967
19 222332455004452
20 1383410902447554
21 8607945812375585
22 53560898629395777
23 333269972246340068