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A233677 as a simple table

n a(n)
1 648
2 4448
3 28544
4 216592
5 1500800
6 11482368
7 81243904
8 617735680
9 4416166400
10 33345630720
11 240057191680
12 1802241148160
13 13042092095744
14 97474927920896
15 708192185963776
16 5274586398563072
17 38438858246173952
18 285526308610159360

[648,4448,28544,216592,1500800,11482368,81243904,
 617735680,4416166400,33345630720,240057191680,
 1802241148160,13042092095744,97474927920896,
 708192185963776,5274586398563072,
 38438858246173952,285526308610159360]

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Last modified December 7 07:53 EST 2021. Contains 349571 sequences. (Running on oeis4.)