# A162364 (b-file synthesized from sequence entry)
0 1
1 22
2 252
3 2002
4 12396
5 63734
6 283107
7 1116236
8 3983485
9 13057330
10 39764011
11 113533312
12 306173263
13 784654154
14 1920802566
15 4510960122
16 10201294213
17 22286443124
18 47167714715
19 96947735390
20 193938666735
21 378324531180