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A299278 as a simple table

na(n)
01
16
219
345
491
5164
6268
7408
8595
9835
101127
111479
121896
132378
142945
153605
164345
175183
186127
197158
208308
219598
2210997
2312528
2414205
2515992
2617936
2720066
2822327
2924758
3027382
3130132
3233073
3336253
3439587
3543125
3646902
3750822
3854971
3959411
4064021
4168873
4274017
4379314
4484874

[1,6,19,45,91,164,268,408,595,835,1127,1479,1896,
 2378,2945,3605,4345,5183,6127,7158,8308,9598,
 10997,12528,14205,15992,17936,20066,22327,24758,
 27382,30132,33073,36253,39587,43125,46902,50822,
 54971,59411,64021,68873,74017,79314,84874]