# A065943 (b-file synthesized from sequence entry)
2 3
3 6
4 30
5 10
6 90
7 315
8 15
9 210
10 1260
11 3780
12 21
13 420
14 3780
15 18900
16 51975
17 28
18 756
19 9450
20 69300
21 311850
22 810810
23 36
24 1260
25 20790
26 207900
27 1351350
28 5675670
29 14189175
30 45
31 1980
32 41580
33 540540
34 4729725
35 28378350
36 113513400
37 275675400