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A090219 as a simple table

n a(n)
3 1
4 -1
5 4
6 1
7 -8
8 10
9 -1
10 12
11 -30
12 20
13 1
14 -64
15 600
16 -1600
17 1225
18 -1
19 80
20 -1000
21 4000
22 -6125
23 3136
24 1
25 -96
26 1500
27 -8000
28 18375
29 -18816
30 7056
31 -1
32 448
33 -21000
34 280000
35 -1500625
36 3687936
37 -4148928
38 1728000
39 1
40 -512
41 28000
42 -448000
43 3001250
44 -9834496
45 16595712
46 -13824000
47 4492125
48 -1

[1,-1,4,1,-8,10,-1,12,-30,20,1,-64,600,-1600,1225,
 -1,80,-1000,4000,-6125,3136,1,-96,1500,-8000,
 18375,-18816,7056,-1,448,-21000,280000,-1500625,
 3687936,-4148928,1728000,1,-512,28000,-448000,
 3001250,-9834496,16595712,-13824000,4492125,-1]

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Last modified June 1 18:31 EDT 2024. Contains 373027 sequences. (Running on oeis4.)