A073403 - OEIS

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A073403 as a simple table

n	a(n)
0	1
1	12
2	36
3	120
4	888
5	1536
6	1152
7	15168
8	62592
9	80448
10	10944
11	222336
12	1600704
13	4813056
14	5068800
15	103680
16	2992896
17	32811264
18	169917696
19	413351424
20	375598080
21	981504
22	38112768
23	587976192
24	4592982528

[1,12,36,120,888,1536,1152,15168,62592,80448, 10944,222336,1600704,4813056,5068800,103680, 2992896,32811264,169917696,413351424,375598080, 981504,38112768,587976192,4592982528]