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A187177 as a simple table

na(n)
10
20
30
40
50
616
7368
81600
94284
108760
1115104
1223144
1332764
1443944
1556684
1670984
1786844
18104264
19123244
20143784
21165884
22189544
23214764
24241544
25269884
26299784
27331244
28364264
29398844
30434984
31472684
32511944
33552764
34595144
35639084
36684584

[0,0,0,0,0,16,368,1600,4284,8760,15104,23144,
 32764,43944,56684,70984,86844,104264,123244,
 143784,165884,189544,214764,241544,269884,299784,
 331244,364264,398844,434984,472684,511944,552764,
 595144,639084,684584]