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A272146 as a simple table

n a(n)
0 1
1 4
2 36
3 180
4 796
5 3096
6 13032
7 52596
8 209744
9 843956
10 3377876
11 13516812
12 54090596
13 216400164
14 865705764
15 3463093152

[1,4,36,180,796,3096,13032,52596,209744,843956,
 3377876,13516812,54090596,216400164,865705764,
 3463093152]

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Last modified August 21 23:38 EDT 2024. Contains 375353 sequences. (Running on oeis4.)