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A146196 as a simple table

na(n)
50
6540
724646
8108226
9315281
10734060
111477489
122682776
134511681
147150588
1510810505
1615727064
1722160521
1830395756
1940742273
2053534200
2169130289
2287913916
23110293081

[0,540,24646,108226,315281,734060,1477489,2682776,
 4511681,7150588,10810505,15727064,22160521,
 30395756,40742273,53534200,69130289,87913916,
 110293081]