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A053406 as a simple table

n a(n)
0 1
1 4
2 15
3 49
4 172
5 511
6 1600
7 4968
8 15328
9 40858
10 82484
11 106963
12 114376
13 116592
14 117100
15 117127
16 117128
17 117129 

[1,4,15,49,172,511,1600,4968,15328,40858,82484,
 106963,114376,116592,117100,117127,117128,117129]

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Last modified May 7 20:13 EDT 2024. Contains 372317 sequences. (Running on oeis4.)