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A047170 as a simple table

n a(n)
1 0
2 0
3 0
4 0
5 0
6 0
7 0
8 0
9 0
10 5
11 6
12 36
13 42
14 147
15 168
16 448
17 504
18 1134
19 1260
20 2565
21 2827
22 5687
23 6270
24 13860
25 15444
26 39039
27 44044
28 119119
29 135135
30 360815
31 408968
32 1039808
33 1174224
34 2842604
35 3197904
36 7515054
37 8436114
38 19773414
39 22203020
40 53093125
41 59750649
42 146794494

[0,0,0,0,0,0,0,0,0,5,6,36,42,147,168,448,504,1134,
 1260,2565,2827,5687,6270,13860,15444,39039,44044,
 119119,135135,360815,408968,1039808,1174224,
 2842604,3197904,7515054,8436114,19773414,22203020,
 53093125,59750649,146794494]

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Last modified September 4 20:04 EDT 2024. Contains 375685 sequences. (Running on oeis4.)