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A037048 as a simple table

na(n)
20
33
49
520
633
754
877
9108
10142
11186
12228
13285
14342
15409
16481
17563
18644
19742
20837
21946
221060
231184
241308
251449
261592
271744
281903
292076
302240
312432
322618
332818
343028
353246
363461
373702
383940
394192
404444
414719
424980
435274
445559

[0,3,9,20,33,54,77,108,142,186,228,285,342,409,
 481,563,644,742,837,946,1060,1184,1308,1449,1592,
 1744,1903,2076,2240,2432,2618,2818,3028,3246,3461,
 3702,3940,4192,4444,4719,4980,5274,5559]