# A353250 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 24
4 48
5 480
6 960
7 13440
8 26880
9 161280
10 322560
11 7096320
12 14192640
13 369008640
14 738017280
15 295206912
16 590413824
17 20074070016
18 40148140032
19 1525629321216
20 15256293212160
21 30512586424320
22 61025172848640
23 2807157951037440
24 5614315902074880