# A015164 (b-file synthesized from sequence entry)
0 1
1 0
2 0
3 0
4 102
5 0
6 1326
7 9792
8 0
9 31552
10 122196
11 0
12 240618
13 992256
14 0
15 1452480
16 4163742
17 0
18 5030028
19 17109888
20 0
21 18128256
22 45317988
23 0
24 43527174
25 134013312
26 0
27 119299200
28 276648888
29 0
30 232127928
31 672628800
32 0
33 537564480
34 1186603368
35 0
36 910537442
37 2535618816
38 0
39 1881950592
40 4014830772
41 0
42 2894860164
43 7826947968
44 0
45 5501926784
46 11452412304
47 0
48 7880557842
49 20846939520
50 0