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A196074 as a simple table

na(n)
10
20
31
48
539
660
7111
8343
9861
102115
115016
1213734
1335912
1482715
15202744
16522390
171333539
183288827
198106150
2020528101
2151563620
22128020497
23319184841
24801237793
252009081101
265009247370
2712506463250
2831323071350
2978380580569
30195823809542

[0,0,1,8,39,60,111,343,861,2115,5016,13734,35912,
 82715,202744,522390,1333539,3288827,8106150,
 20528101,51563620,128020497,319184841,801237793,
 2009081101,5009247370,12506463250,31323071350,
 78380580569,195823809542]