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A089478 as a simple table

n a(n)
0 0
1 1
2 1
3 1
4 10
5 3
6 338
7 84
8 3
9 42976
10 10020
11 1200
12 60
13 21040112
14 4851360
15 1213920
16 144720
17 43560
18 3600
19 39882864736
20 9240051240
21 3868663680
22 768723480
23 418703040
24 63612360
25 46569600
26 6438600
27 5014800
28 529200
29 292604283435872

[0,1,1,1,10,3,338,84,3,42976,10020,1200,60,
 21040112,4851360,1213920,144720,43560,3600,
 39882864736,9240051240,3868663680,768723480,
 418703040,63612360,46569600,6438600,5014800,
 529200,292604283435872]

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Last modified April 25 03:15 EDT 2024. Contains 371964 sequences. (Running on oeis4.)