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A020391 as a simple table

na(n)
1751
21303
31543
42174
52481
62503
72647
82654
92794
102839
112841
123118
133149
143424
153489
163565
173566
183607
194039
204076
214252
224300
234412
244529
254617
264735
274855
284903
295132
305324
315549
325793
335969
346004
356125
366126
376143
386287
396356
406538
416638
426775

[751,1303,1543,2174,2481,2503,2647,2654,2794,2839,
 2841,3118,3149,3424,3489,3565,3566,3607,4039,4076,
 4252,4300,4412,4529,4617,4735,4855,4903,5132,5324,
 5549,5793,5969,6004,6125,6126,6143,6287,6356,6538,
 6638,6775]