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A064204 as a simple table

n a(n)
0 0
1 0
2 4
3 120
4 1140
5 6525
6 27580
7 94724
8 279160
9 730930
10 1741300
11 3839660
12 7937644
13 15535975
14 29012620
15 52014200
16 89976240
17 150801764
18 245731940
19 390446960
20 606440100
21 922712945
22 1377845084
23 2022497180
24 2922412200
25 4161985750
26 5848482900
27 8116985604

[0,0,4,120,1140,6525,27580,94724,279160,730930,
 1741300,3839660,7937644,15535975,29012620,
 52014200,89976240,150801764,245731940,390446960,
 606440100,922712945,1377845084,2022497180,
 2922412200,4161985750,5848482900,8116985604]

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Last modified April 24 18:17 EDT 2024. Contains 371962 sequences. (Running on oeis4.)