# A084744 (b-file synthesized from sequence entry)
1 1
2 2
3 8
4 24
5 48
6 384
7 1152
8 2304
9 9216
10 46080
11 414720
12 829440
13 13271040
14 79626240
15 318504960
16 637009920
17 1911029760
18 15288238080
19 107017666560
20 535088332800
21 1070176665600
22 9631589990400
23 38526359961600
24 77052719923200