# A302693 (b-file synthesized from sequence entry)
0 1
1 1
2 0
3 3
4 0
5 10
6 36
7 35
8 448
9 450
10 4600
11 13167
12 45408
13 240006
14 670124
15 3863835
16 13209088
17 60533974
18 268324056
19 1089776654
20 5328589520
21 22065836226
22 106289169448
23 481033496803
24 2231768294208
25 10748702587800
26 49858509230920
27 245664498591891
28 1175943617623264