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A038420 as a simple table

na(n)
01
14
210
320
438
555
675
7104
8149
9185
10218
11266
12324
13390
14434
15504
16569
17664
18742
19821
20898
21997
221106
231204
241300
251418
261526
271669
281773
291908
302031
312205
322315
332474
342623
352775
362952
373160
383243
393457
403653
413836
424013
434219
444377
454628
464808

[1,4,10,20,38,55,75,104,149,185,218,266,324,390,
 434,504,569,664,742,821,898,997,1106,1204,1300,
 1418,1526,1669,1773,1908,2031,2205,2315,2474,2623,
 2775,2952,3160,3243,3457,3653,3836,4013,4219,4377,
 4628,4808]