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A187512 as a simple table

na(n)
10
20
320
4330
51224
62726
74807
87458
910679
1014470
1118831
1223762
1329263
1435334
1541975
1649186
1756967
1865318
1974239
2083730
2193791
22104422
23115623
24127394
25139735
26152646
27166127
28180178
29194799
30209990
31225751
32242082
33258983
34276454
35294495

[0,0,20,330,1224,2726,4807,7458,10679,14470,18831,
 23762,29263,35334,41975,49186,56967,65318,74239,
 83730,93791,104422,115623,127394,139735,152646,
 166127,180178,194799,209990,225751,242082,258983,
 276454,294495]