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A281866 as a simple table

na(n)
60
71
83
97
1019
1139
1274
13134
14227
15365
16568
17854
181247
191777
202479
213392
224562
236043
247898
2510194
2613010
2716428
2820547
2925474
3031330
3138248
3246370
3355846
3466843
3579544
3694161
37110917
38130044
39151782
40176391
41204159
42235410
43270487
44309744
45353539
46402255

[0,1,3,7,19,39,74,134,227,365,568,854,1247,1777,
 2479,3392,4562,6043,7898,10194,13010,16428,20547,
 25474,31330,38248,46370,55846,66843,79544,94161,
 110917,130044,151782,176391,204159,235410,270487,
 309744,353539,402255]