A111687 - OEIS

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A111687 as a simple table

n	a(n)
1	8
2	144
3	5760
4	362880
5	39916800
6	6227020800
7	1482030950400
8	422378820864000
9	155435406077952000
10	81137281972690944000
11	50305114823068385280000
12	39087074217524135362560000
13	35256540944206770097029120000

[8,144,5760,362880,39916800,6227020800, 1482030950400,422378820864000,155435406077952000, 81137281972690944000,50305114823068385280000, 39087074217524135362560000, 35256540944206770097029120000]