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A160769 as a simple table

na(n)
021
1206
2917
32757
46571
513446
624711
741937
866937
9101766
10148721
11210341
12289407
13388942
14512211
15662721
16844221
171060702
181316397
191615781
201963571
212364726
222824447
233348177
243941601
254610646
265361481
276200517
287134407

[21,206,917,2757,6571,13446,24711,41937,66937,
 101766,148721,210341,289407,388942,512211,662721,
 844221,1060702,1316397,1615781,1963571,2364726,
 2824447,3348177,3941601,4610646,5361481,6200517,
 7134407]