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A145144 as a simple table

n a(n)
3 1
4 3
5 11
6 50
7 634
8 6804
9 71868
10 789984
11 11025936
12 174509280
13 2940903360
14 51707242080
15 987781034304
16 20520063789120
17 456583392034560
18 10712403843563520
19 265316096850923520
20 6948996535924162560

[1,3,11,50,634,6804,71868,789984,11025936,
 174509280,2940903360,51707242080,987781034304,
 20520063789120,456583392034560,10712403843563520,
 265316096850923520,6948996535924162560]

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Last modified May 8 00:02 EDT 2024. Contains 372317 sequences. (Running on oeis4.)