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A163455 as a simple table

n a(n)
0 1
1 4
2 36
3 364
4 3876
5 42504
6 475020
7 5379616
8 61523748
9 708930508
10 8217822536
11 95722852680
12 1119487075980
13 13136858812224
14 154603005527328
15 1824010149372864
16 21566576904406820
17 255485622301674660
18 3031718514166879020
19 36030431772522503316

[1,4,36,364,3876,42504,475020,5379616,61523748,
 708930508,8217822536,95722852680,1119487075980,
 13136858812224,154603005527328,1824010149372864,
 21566576904406820,255485622301674660,
 3031718514166879020,36030431772522503316]

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Last modified June 12 00:32 EDT 2024. Contains 373320 sequences. (Running on oeis4.)