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A138272 as a simple table

n a(n)
0 1
1 1
2 4
3 28
4 268
5 3164
6 43672
7 682632
8 11834536
9 224283416
10 4597330748
11 101100605540
12 2370095338372
13 58924635472260
14 1546999678599872
15 42734731811302304
16 1238309697485975648
17 37538075865014728096

[1,1,4,28,268,3164,43672,682632,11834536,
 224283416,4597330748,101100605540,2370095338372,
 58924635472260,1546999678599872,42734731811302304,
 1238309697485975648,37538075865014728096]

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Last modified July 16 21:48 EDT 2024. Contains 374358 sequences. (Running on oeis4.)