# A099973 (b-file synthesized from sequence entry)
0 1
1 9
2 73
3 201
4 457
5 969
6 9161
7 140233
8 402377
9 2499529
10 6693833
11 15082441
12 31859657
13 65414089
14 132522953
15 1206264777
16 3353748425
17 11943683017
18 29123552201
19 63483290569
20 132202767305
21 269641720777
22 819397534665