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A121844 as a simple table

na(n)
21
34
43
512
65
76
83
92
103
114
125
1318
143
152
163
174
185
192
207
214
229
234
2417
256
263
272
289
2910
307
312
3219
334
343
3512
367
372
383
3938
403
414
4211
4314
4425
454
469
4710
485
496
509
514
525
534
547
5512
5615
574
589
5922
6017
6138
627
634
645
6516
665
672
689
6928
7011
7128
7217
7314
743
7528
769
774
785
7912
803
8158
825
834
8411
8512
8613
8716
8821
8922
907
912
927

[1,4,3,12,5,6,3,2,3,4,5,18,3,2,3,4,5,2,7,4,9,4,17,
 6,3,2,9,10,7,2,19,4,3,12,7,2,3,38,3,4,11,14,25,4,
 9,10,5,6,9,4,5,4,7,12,15,4,9,22,17,38,7,4,5,16,5,
 2,9,28,11,28,17,14,3,28,9,4,5,12,3,58,5,4,11,12,
 13,16,21,22,7,2,7]