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A222367 as a simple table

n a(n)
1 4
2 10
3 40
4 191
5 992
6 11249
7 73499
8 860209
9 6307306
10 74012176
11 548361088
12 6378096812
13 48367991654
14 550707554841
15 4263914923100
16 47703529309311
17 376110082681155
18 4139579798966437
19 33202155719397274
20 359908637810354268

[4,10,40,191,992,11249,73499,860209,6307306,
 74012176,548361088,6378096812,48367991654,
 550707554841,4263914923100,47703529309311,
 376110082681155,4139579798966437,
 33202155719397274,359908637810354268]

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Last modified August 5 05:22 EDT 2020. Contains 336209 sequences. (Running on oeis4.)