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A184961 as a simple table

n a(n)
7 1
8 1
9 4
10 21
11 266
12 7849
13 1
14 367860
15 0
16 21609300
17 1
18 1470293675
19 1
20 113314233808
21 9
22 9799685588936
23 6

[1,1,4,21,266,7849,1,367860,0,21609300,1,
 1470293675,1,113314233808,9,9799685588936,6]

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Last modified April 25 11:03 EDT 2024. Contains 371967 sequences. (Running on oeis4.)