# A103687 (b-file synthesized from sequence entry)
1 1
2 1
3 2
4 2
5 3
6 6
7 12
8 36
9 156
10 520
11 1920
12 5760
13 12600
14 39900
15 210140
16 844984
17 2871876
18 8784783
19 29392449
20 123405524
21 726794464
22 3669378736
23 20998365592
24 139906305272
25 770298602024
26 4979077340664
27 35706521898618
28 187318543647373
29 1117410697347693
30 7335115455487050
31 46292557037334300