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A253779 as a simple table

n a(n)
1 0
2 6
3 180
4 540
5 2856
6 5544
7 16830
8 27060
9 62244
10 90090
11 175440
12 237456
13 413820
14 534660
15 860706
16 1074744
17 1630200
18 1983150
19 2872044
20 3422580
21 4776480
22 5597856
23 7579110
24 8760780
25 11565756
26 13214994
27 17077320
28 19320840
29 24514644
30 27500220
31 34343370
32 38241456
33 47098800

[0,6,180,540,2856,5544,16830,27060,62244,90090,
 175440,237456,413820,534660,860706,1074744,
 1630200,1983150,2872044,3422580,4776480,5597856,
 7579110,8760780,11565756,13214994,17077320,
 19320840,24514644,27500220,34343370,38241456,
 47098800]

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Last modified September 20 16:48 EDT 2019. Contains 327242 sequences. (Running on oeis4.)