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A187861 as a simple table

n a(n)
1 0
2 0
3 846
4 9932
5 47962
6 126397
7 262409
8 452766
9 707541
10 1017934
11 1387600
12 1813854
13 2296696
14 2836126
15 3432144
16 4084750
17 4793944
18 5559726
19 6382096
20 7261054
21 8196600
22 9188734
23 10237456
24 11342766
25 12504664
26 13723150
27 14998224
28 16329886
29 17718136

[0,0,846,9932,47962,126397,262409,452766,707541,
 1017934,1387600,1813854,2296696,2836126,3432144,
 4084750,4793944,5559726,6382096,7261054,8196600,
 9188734,10237456,11342766,12504664,13723150,
 14998224,16329886,17718136]

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Last modified January 24 19:03 EST 2022. Contains 350565 sequences. (Running on oeis4.)