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A160847 as a simple table

na(n)
00
11
251
3100
4181
5274
6405
7536
8709
9894
101111
111330
121591
131858
142167
152482
162825
173180
183577
193974
204413
214860
225339
235824
246351
256884
267455
278032
288641
299262
309925
3110584
3211285
3311998
3412743
3513494
3614283
3715078
3815915
3916758
4017633
4118516

[0,1,51,100,181,274,405,536,709,894,1111,1330,
 1591,1858,2167,2482,2825,3180,3577,3974,4413,4860,
 5339,5824,6351,6884,7455,8032,8641,9262,9925,
 10584,11285,11998,12743,13494,14283,15078,15915,
 16758,17633,18516]