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A077530 as a simple table

n a(n)
1 1
2 4
3 9
4 88
5 525
6 414
7 525
8 656
9 747
10 0
11 242
12 6996
13 7007
14 20202
15 52425
16 25952
17 20502
18 28782
19 28082
20 0
21 32823
22 4334
23 40204
24 61416
25 520025
26 64246
27 73737
28 69496
29 76067
30 0
31 95759
32 276672
33 9339
34 272272
35 5046405
36 468864
37 36963
38 611116
39 333333
40 0

[1,4,9,88,525,414,525,656,747,0,242,6996,7007,
 20202,52425,25952,20502,28782,28082,0,32823,4334,
 40204,61416,520025,64246,73737,69496,76067,0,
 95759,276672,9339,272272,5046405,468864,36963,
 611116,333333,0]

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Last modified January 24 00:05 EST 2022. Contains 350515 sequences. (Running on oeis4.)