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A153960 as a simple table

n a(n)
0 1
1 2
2 4
3 16
4 61
5 481
6 3632
7 56460
8 846246
9 26077855
10 775360108
11 47367748738
12 2788988175862
13 337520120950504
14 39370755765040186
15 9439231435010737547
16 2181450759732224994542
17 1036179888983780783839829

[1,2,4,16,61,481,3632,56460,846246,26077855,
 775360108,47367748738,2788988175862,
 337520120950504,39370755765040186,
 9439231435010737547,2181450759732224994542,
 1036179888983780783839829]

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Last modified August 31 22:14 EDT 2024. Contains 375574 sequences. (Running on oeis4.)