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A249688 as a simple table

n a(n)
1 1
2 576
3 63504
4 2166784
5 23328900
6 36578304
7 280361536
8 7136870400
9 12914731449
10 13437446400
11 285809990544
12 137599451136
13 333781196644
14 161488244736
15 1481478465600
16 974437482496
17 47691924412356
18 7438885314624

[1,576,63504,2166784,23328900,36578304,280361536,
 7136870400,12914731449,13437446400,285809990544,
 137599451136,333781196644,161488244736,
 1481478465600,974437482496,47691924412356,
 7438885314624]

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Last modified January 29 13:51 EST 2023. Contains 359923 sequences. (Running on oeis4.)