A008696 - OEIS

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A008696 as a simple table

n	a(n)
0	1
1	240
2	190800
3	16833600
4	397680720
5	4630540320
6	34416204480
7	187485916800
8	814900050000
9	2975524213680
10	9486523478880
11	27053074226880
12	70486147972800
13	169930956669600
14	384163682797440
15	820166912933760

[1,240,190800,16833600,397680720,4630540320, 34416204480,187485916800,814900050000, 2975524213680,9486523478880,27053074226880, 70486147972800,169930956669600,384163682797440, 820166912933760]