A280906 - OEIS

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A280906 as a simple table

n	a(n)
1	0
2	1464
3	610448
4	75809243
5	7083739466
6	574982226478
7	42393379206019
8	2942502897692141
9	195365303234441770
10	12545498025247203218
11	784842927161230385854
12	48079317345677228680390
13	2894948350054066836940824

[0,1464,610448,75809243,7083739466,574982226478, 42393379206019,2942502897692141, 195365303234441770,12545498025247203218, 784842927161230385854,48079317345677228680390, 2894948350054066836940824]