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A051815 as a simple table

n a(n)
1 1
2 12
3 105
4 780
5 5452
6 39979
7 336081
8 3263355
9 34518027
10 372779338
11 3957184040
12 40729856248
13 406862880846
14 3979167973684
15 38556471560342
16 374259579575061 

[1,12,105,780,5452,39979,336081,3263355,34518027,
 372779338,3957184040,40729856248,406862880846,
 3979167973684,38556471560342,374259579575061]

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Last modified April 25 10:01 EDT 2024. Contains 371967 sequences. (Running on oeis4.)