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A008432 as a simple table

n a(n)
0 1
1 180
2 3380
3 16320
4 52020
5 129064
6 262080
7 489600
8 840500
9 1330420
10 2050344
11 2986560
12 4194240
13 5878440
14 7862400
15 10216320
16 13415220
17 17163880
18 21250420
19 26585280
20 32826664
21 39475200
22 47960640
23 57087360
24 67108800
25 80452188
26 93590440
27 107091840
28 125827200
29 145415080

[1,180,3380,16320,52020,129064,262080,489600,
 840500,1330420,2050344,2986560,4194240,5878440,
 7862400,10216320,13415220,17163880,21250420,
 26585280,32826664,39475200,47960640,57087360,
 67108800,80452188,93590440,107091840,125827200,
 145415080]

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Last modified October 16 12:23 EDT 2021. Contains 348041 sequences. (Running on oeis4.)