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A273447 as a simple table

na(n)
01
15
226
367
4147
5267
6435
7659
8947
91307
101747
112275
122899
133627
144467
155427
166515
177739
189107
1910627
2012307
2114155
2216179
2318387
2420787
2523387
2626195
2729219
2832467
2935947
3039667
3143635
3247859
3352347
3457107
3562147
3667475
3773099
3879027
3985267
4091827
4198715

[1,5,26,67,147,267,435,659,947,1307,1747,2275,
 2899,3627,4467,5427,6515,7739,9107,10627,12307,
 14155,16179,18387,20787,23387,26195,29219,32467,
 35947,39667,43635,47859,52347,57107,62147,67475,
 73099,79027,85267,91827,98715]