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A234732 as a simple table

n a(n)
1 672
2 2184
3 6048
4 21048
5 64320
6 233016
7 760608
8 2827992
9 9650112
10 36532344
11 128569248
12 493143768
13 1774812480
14 6874544376
15 25161581088
16 98188573272
17 364094768832
18 1428934093944
19 5353358809248
20 21102161187288
21 79707896139840 

[672,2184,6048,21048,64320,233016,760608,2827992,
 9650112,36532344,128569248,493143768,1774812480,
 6874544376,25161581088,98188573272,364094768832,
 1428934093944,5353358809248,21102161187288,
 79707896139840]

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Last modified May 23 18:59 EDT 2024. Contains 372765 sequences. (Running on oeis4.)