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A000506 as a simple table

n a(n)
6 61
7 841
8 7311
9 51663
10 325446
11 1910706
12 10715506
13 58258210
14 309958755
15 1623847695
16 8412276585
17 43220104041
18 220683627988
19 1121561317408
20 5679711010548
21 28683869195556
22 144552802373145
23 727271783033445 

[61,841,7311,51663,325446,1910706,10715506,
 58258210,309958755,1623847695,8412276585,
 43220104041,220683627988,1121561317408,
 5679711010548,28683869195556,144552802373145,
 727271783033445]

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Last modified September 12 18:10 EDT 2024. Contains 375853 sequences. (Running on oeis4.)