A231028 - OEIS

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A231028 as a simple table

n	a(n)
1	0
2	344
3	12400
4	1444702
5	124446770
6	11542542126
7	1050541512334
8	96084401660280
9	8776913226846168
10	801999453871350642
11	73277218848409360596
12	6695355497136560389160
13	611752553994156925696252

[0,344,12400,1444702,124446770,11542542126, 1050541512334,96084401660280,8776913226846168, 801999453871350642,73277218848409360596, 6695355497136560389160,611752553994156925696252]