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A126861 as a simple table

n a(n)
0 0
1 0
2 1
3 80
4 1224
5 9152
6 45276
7 170784
8 534464
9 1438848
10 3507102
11 7711600
12 16053728
13 30831552
14 57578072
15 100382304
16 173117952
17 280579200
18 455656725
19 697508496
20 1079398256
21 1580599552
22 2351610612
23 3315523424
24 4785293568
25 6534524160
26 9173253878
27 12226860576

[0,0,1,80,1224,9152,45276,170784,534464,1438848,
 3507102,7711600,16053728,30831552,57578072,
 100382304,173117952,280579200,455656725,697508496,
 1079398256,1580599552,2351610612,3315523424,
 4785293568,6534524160,9173253878,12226860576]

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Last modified August 4 09:03 EDT 2020. Contains 336201 sequences. (Running on oeis4.)