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A279574 as a simple table

n a(n)
1 0
2 4
3 40
4 352
5 3008
6 25280
7 209792
8 1723392
9 14039040
10 113562624
11 913131520
12 7304519680
13 58170228736
14 461421658112
15 3647369216000
16 28741570396160
17 225854805245952
18 1770332698705920
19 13844879799484416
20 108048964894326784

[0,4,40,352,3008,25280,209792,1723392,14039040,
 113562624,913131520,7304519680,58170228736,
 461421658112,3647369216000,28741570396160,
 225854805245952,1770332698705920,
 13844879799484416,108048964894326784]

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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)