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A143253 as a simple table

na(n)
11
21
31
41
54
64
71
81
94
102
112
124
131
141
154
169
175
183
193
205
219
224
231
241
254
269
273
2812
2910
3010
3112
323
339
344
351
361
374
389
3916
408
412
4215
4313
4413
4515
462
478
4816
499
504
511
521
534
549
5516
566
5717
5811
597
605
615
627
6311
6417
656
6616
679
684
691
701
714
729
7316
742
7513
763
7718
7812
798
806
816
828
8312
8418
853
8613
872
8816
899
904
911

[1,1,1,1,4,4,1,1,4,2,2,4,1,1,4,9,5,3,3,5,9,4,1,1,
 4,9,3,12,10,10,12,3,9,4,1,1,4,9,16,8,2,15,13,13,
 15,2,8,16,9,4,1,1,4,9,16,6,17,11,7,5,5,7,11,17,6,
 16,9,4,1,1,4,9,16,2,13,3,18,12,8,6,6,8,12,18,3,13,
 2,16,9,4,1]