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A222483 as a simple table

n a(n)
1 0
2 4
3 6
4 85
5 365
6 3696
7 14928
8 159062
9 645704
10 7158232
11 28604092
12 328610072
13 1296477288
14 15279837312
15 59712212872
16 716028671796
17 2782912936084
18 33742870102928
19 130808705085792
20 1597212351282064
21 6187399238975776

[0,4,6,85,365,3696,14928,159062,645704,7158232,
 28604092,328610072,1296477288,15279837312,
 59712212872,716028671796,2782912936084,
 33742870102928,130808705085792,1597212351282064,
 6187399238975776]

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Last modified August 10 23:32 EDT 2024. Contains 375059 sequences. (Running on oeis4.)