# A192349 (b-file synthesized from sequence entry)
1 0
2 1
3 2
4 14
5 40
6 180
7 616
8 2456
9 8960
10 34384
11 128160
12 485728
13 1823360
14 6882368
15 25896064
16 97614720
17 367575040
18 1384954112
19 5216465408
20 19651804672
21 74025216000
22 278859191296
23 1050447030272
24 3957059508224
25 14906157629440
26 56151566438400