# A228448 (b-file synthesized from sequence entry)
0 1
1 0
2 0
3 0
4 0
5 0
6 0
7 2
8 6
9 18
10 61
11 225
12 901
13 3905
14 18226
15 91134
16 486048
17 2754274
18 16525645
19 104662422
20 697749481
21 4884246371
22 35817806721
23 274603184861
24 2196825478892
25 18306878990770
26 158659617920008
27 1427936561280078
28 13327407905280733
29 128831609751047086