# A096085 (b-file synthesized from sequence entry)
1 1
2 2
3 6
4 4
5 20
6 60
7 340
8 920
9 600
10 1000
11 14240
12 31560
13 100120
14 140960
15 315960
16 314800
17 7523840
18 1020480
19 109764640
20 66757520
21 23256960
22 2200720
23 1260893360
24 1059221040
25 16184204800
26 34159566800
27 18162880800
28 68345405200