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A053475 as a simple table

na(n)
12
23
33
44
53
65
73
85
94
106
113
126
133
146
154
166
173
187
193
207
215
227
233
247
254
267
275
287
293
308
313
327
334
348
354
368
373
388
395
408
413
429
433
448
456
468
473
488
494
509
514
528
533
549
555
568
576
589
593
609
613
628
636
648
654
669
673
689
695
709
713
729
733
749
755
769
774
7810
793
809
816
8210
833
8410
856
869
874
889
893
9010
914
929
935
949
954
969
973
989
996
10010
1013
10210

[2,3,3,4,3,5,3,5,4,6,3,6,3,6,4,6,3,7,3,7,5,7,3,7,
 4,7,5,7,3,8,3,7,4,8,4,8,3,8,5,8,3,9,3,8,6,8,3,8,4,
 9,4,8,3,9,5,8,6,9,3,9,3,8,6,8,4,9,3,9,5,9,3,9,3,9,
 5,9,4,10,3,9,6,10,3,10,6,9,4,9,3,10,4,9,5,9,4,9,3,
 9,6,10,3,10]