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A012418 as a simple table

n a(n)
0 1
1 0
2 1
3 6
4 21
5 100
6 1005
7 9170
8 73353
9 794952
10 11042745
11 144625118
12 1936131549
13 31475441452
14 562265168101
15 9960214270890
16 187956163443857
17 3970728871687824
18 88040662078595313
19 1994667867977462454

[1,0,1,6,21,100,1005,9170,73353,794952,11042745,
 144625118,1936131549,31475441452,562265168101,
 9960214270890,187956163443857,3970728871687824,
 88040662078595313,1994667867977462454]

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Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)