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A280073 as a simple table

na(n)
10
21
31
41
52
61
71
83
92
101
113
121
134
142
151
163
171
185
194
203
212
221
235
241
256
265
274
283
292
301
315
323
331
347
354
362
371
387
395
403
411
428
437
446
455
464
473
482
491
507
515
521
539
548
557
566
575
584
593
602
611
629
637
643
651
6610
678
685
694
702
711
729
737
745
753
761
7711
7810
799
808
817
826
835
844
853
862
871
8811
897
905
911
9212
9311
949
958
967
976
984
993
1002
1011
10211
1039
1047

[0,1,1,1,2,1,1,3,2,1,3,1,4,2,1,3,1,5,4,3,2,1,5,1,
 6,5,4,3,2,1,5,3,1,7,4,2,1,7,5,3,1,8,7,6,5,4,3,2,1,
 7,5,1,9,8,7,6,5,4,3,2,1,9,7,3,1,10,8,5,4,2,1,9,7,
 5,3,1,11,10,9,8,7,6,5,4,3,2,1,11,7,5,1,12,11,9,8,
 7,6,4,3,2,1,11,9,7]