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A023811 as a simple table

n a(n)
1 0
2 1
3 5
4 27
5 194
6 1865
7 22875
8 342391
9 6053444
10 123456789
11 2853116705
12 73686780563
13 2103299351334
14 65751519677857
15 2234152501943159
16 81985529216486895
17 3231407272993502984
18 136146740744970718253
19 6106233505124424657789
20 290464265927977839335179

[0,1,5,27,194,1865,22875,342391,6053444,123456789,
 2853116705,73686780563,2103299351334,
 65751519677857,2234152501943159,81985529216486895,
 3231407272993502984,136146740744970718253,
 6106233505124424657789,290464265927977839335179]

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Last modified April 25 06:49 EDT 2024. Contains 371964 sequences. (Running on oeis4.)