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A188790 as a simple table

n a(n)
1 0
2 9984
3 748128
4 5886720
5 22274448
6 59693952
7 130988744
8 252065024
9 441881832
10 722450048
11 1118832392
12 1659143424
13 2374549544
14 3299268992
15 4470571848
16 5928780032
17 7717267304
18 9882459264
19 12473833352
20 15543918848
21 19148296872

[0,9984,748128,5886720,22274448,59693952,
 130988744,252065024,441881832,722450048,
 1118832392,1659143424,2374549544,3299268992,
 4470571848,5928780032,7717267304,9882459264,
 12473833352,15543918848,19148296872]

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Last modified April 19 11:31 EDT 2024. Contains 371792 sequences. (Running on oeis4.)