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A261635 as a simple table

na(n)
01
14
210
320
439
572
6124
7204
8331
9524
10806
111216
121813
132660
143846
155500
167790
1710916
1815158
1920880
2028544
2138736
2252226
2369972
2493200
25123460
26162700
27213340
28278459
29361860
30468252
31603484
32774844
33991220
341263576
351605392
362033172
372566972
383231338

[1,4,10,20,39,72,124,204,331,524,806,1216,1813,
 2660,3846,5500,7790,10916,15158,20880,28544,38736,
 52226,69972,93200,123460,162700,213340,278459,
 361860,468252,603484,774844,991220,1263576,
 1605392,2033172,2566972,3231338]