# A028534 (b-file synthesized from sequence entry)
0 1
1 0
2 273
3 2600
4 15574
5 74152
6 298727
7 1063296
8 3446976
9 10372648
10 29339830
11 78743704
12 202029217
13 498419352
14 1187801472
15 2744629160
16 6168518954
17 13520236184
18 28964224276
19 60763815944
20 125042509293
21 252773942408
22 502601223072
23 984061445952
24 1899179849814