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A236868 as a simple table

n a(n)
1 81
2 287
3 1069
4 4131
5 16153
6 63867
7 253269
8 1008347
9 4017129
10 16029051
11 63964053
12 255428971
13 1020001673
14 4074620555
15 16277074485
16 65036521755
17 259868094441
18 1038512291675
19 4150437015637
20 16589196684619
21 66311024500553

[81,287,1069,4131,16153,63867,253269,1008347,
 4017129,16029051,63964053,255428971,1020001673,
 4074620555,16277074485,65036521755,259868094441,
 1038512291675,4150437015637,16589196684619,
 66311024500553]

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Last modified June 27 04:37 EDT 2022. Contains 354888 sequences. (Running on oeis4.)