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A239428 as a simple table

na(n)
10
20
30
40
50
60
70
81
90
101
111
122
132
142
153
162
173
183
192
204
212
224
232
242
253
261
274
282
293
303
312
324
331
345
354
365
376
384
396
404
415
424
433
445
452
464
472
482
492
501
512
521
532
543
553
562
573
583
595
606
614
626
635
647
654
665
675
684
695
703
715
726
735
746
754
766
774
786
795
806

[0,0,0,0,0,0,0,1,0,1,1,2,2,2,3,2,3,3,2,4,2,4,2,2,
 3,1,4,2,3,3,2,4,1,5,4,5,6,4,6,4,5,4,3,5,2,4,2,2,2,
 1,2,1,2,3,3,2,3,3,5,6,4,6,5,7,4,5,5,4,5,3,5,6,5,6,
 4,6,4,6,5,6]