# A076000 (b-file synthesized from sequence entry)
1 1
2 1
3 2
4 3
5 12
6 20
7 120
8 315
9 1680
10 6048
11 60480
12 138600
13 1663200
14 9266400
15 69189120
16 340540200
17 5448643200
18 22870848000
19 411675264000
20 2111894104320
21 24135932620800
22 230388447744000
23 5068545850368000