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A253525 as a simple table

n a(n)
1 81
2 2722
3 22418
4 182493
5 745281
6 4292539
7 14461240
8 74067255
9 239552591
10 1153148632
11 3757984096
12 17291330720
13 57734458801 

[81,2722,22418,182493,745281,4292539,14461240,
 74067255,239552591,1153148632,3757984096,
 17291330720,57734458801]

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)