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A274254 as a simple table

n a(n)
0 1
1 1
2 350550
3 2615176875
4 1466017600854
5 198682173665365
6 10968475501587457
7 325818421703912376
8 6148914695531484502
9 82064241864324799212
10 833333333383333333334
11 6783562449045969261416
12 46005119909741205651457
13 267653239830467338960133 

[1,1,350550,2615176875,1466017600854,
 198682173665365,10968475501587457,
 325818421703912376,6148914695531484502,
 82064241864324799212,833333333383333333334,
 6783562449045969261416,46005119909741205651457,
 267653239830467338960133]

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Last modified April 23 14:15 EDT 2024. Contains 371914 sequences. (Running on oeis4.)