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A374496 as a simple table

na(n)
11
23
310
421
536
678
7136
8210
9406
10666
111176
122080
133240
145460
158256
1614196
1721736
1839340
1964980
20119316
21190036
22339900
23533028
24830116
251452660
262248260
273899028
286001380
2910073316
3017009028
3125751076
3243734628
3366453156
34113228676
35183255940
36276042756
37466238916
38705996676
391198956996

[1,3,10,21,36,78,136,210,406,666,1176,2080,3240,
 5460,8256,14196,21736,39340,64980,119316,190036,
 339900,533028,830116,1452660,2248260,3899028,
 6001380,10073316,17009028,25751076,43734628,
 66453156,113228676,183255940,276042756,466238916,
 705996676,1198956996]