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A163277 as a simple table

n a(n)
0 0
1 2
2 576
3 17496
4 204800
5 1406250
6 6858432
7 26353376
8 84934656
9 239148450
10 605000000
11 1403076312
12 3027787776
13 6149354666
14 11859019200
15 21870000000
16 38788923392
17 66474865026
18 110505715776
19 178774347800
20 282240000000

[0,2,576,17496,204800,1406250,6858432,26353376,
 84934656,239148450,605000000,1403076312,
 3027787776,6149354666,11859019200,21870000000,
 38788923392,66474865026,110505715776,178774347800,
 282240000000]

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Last modified March 28 10:55 EDT 2024. Contains 371241 sequences. (Running on oeis4.)