# A232985 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 6
4 24
5 120
6 720
7 5040
8 40320
9 362880
10 3628800
11 3628800
12 43545600
13 566092800
14 7925299200
15 118879488000
16 1902071808000
17 32335220736000
18 582033973248000
19 11058645491712000
20 221172909834240000
21 4644631106519040000
22 4644631106519040000
23 106826515449937920000
24 2563836370798510080000