A222966 - OEIS

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A222966 as a simple table

n	a(n)
1	12
2	48
3	576
4	3140
5	37680
6	264384
7	3441888
8	27387944
9	361269072
10	3225928864
11	42721628400
12	406849454892
13	5367772345392
14	53623428017220
15	702878396190336
16	7266377873987616
17	94437176916813264
18	1001872830089699424

[12,48,576,3140,37680,264384,3441888,27387944, 361269072,3225928864,42721628400,406849454892, 5367772345392,53623428017220,702878396190336, 7266377873987616,94437176916813264, 1001872830089699424]