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A143401 as a simple table

n a(n)
0 0
1 0
2 0
3 0
4 0
5 0
6 1
7 63
8 2282
9 62370
10 1428987
11 28979181
12 537306484
13 9302333040
14 152587968533
15 2396472657579
16 36320866824606
17 534421447961310
18 7670116319449039
19 107781064078390857
20 1487396442778796648
21 20208696810429799980
22 270879169288278532905

[0,0,0,0,0,0,1,63,2282,62370,1428987,28979181,
 537306484,9302333040,152587968533,2396472657579,
 36320866824606,534421447961310,7670116319449039,
 107781064078390857,1487396442778796648,
 20208696810429799980,270879169288278532905]

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Last modified April 30 09:09 EDT 2024. Contains 372131 sequences. (Running on oeis4.)