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A037018 as a simple table

na(n)
21
38
48
524
624
732
832
9114
10115
11116
12117
13117
14118
15119
16140
17140
18141
19200
20212
21212
22213
23294
24294
25318
26318
27319
28319
29319
30320
31524
32524
33525
34525
35525
36526
37526
38527
39527
40527
411328
421329
431330
441330
451331
461332
471332
481333
491333
501334
511334
521335

[1,8,8,24,24,32,32,114,115,116,117,117,118,119,
 140,140,141,200,212,212,213,294,294,318,318,319,
 319,319,320,524,524,525,525,525,526,526,527,527,
 527,1328,1329,1330,1330,1331,1332,1332,1333,1333,
 1334,1334,1335]