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A352668 as a simple table

na(n)
10
20
30
41
54
612
724
848
984
10138
11216
12324
13459
14636
15864
161152
171488
181900
192400
203000
213675
224470
235400
246480
257668
269030
2710584
2812348
2914259
3016408
3118816
3221504
3324384
3427576
3531104
3634992
3739123
3843650
3948600
4054000
4159700
4265890
4372600
4479860
4587483
4695742

[0,0,0,1,4,12,24,48,84,138,216,324,459,636,864,
 1152,1488,1900,2400,3000,3675,4470,5400,6480,7668,
 9030,10584,12348,14259,16408,18816,21504,24384,
 27576,31104,34992,39123,43650,48600,54000,59700,
 65890,72600,79860,87483,95742]