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A075993 as a simple table

na(n)
11
21
31
42
50
61
72
81
90
101
113
121
130
140
151
163
171
181
190
200
211
224
231
241
250
260
270
281
294
302
310
321
330
340
350
361
375
381
391
401
410
420
430
440
451
465
472
481
490
501
510
520
530
540
551
566
572
581
590
601
610
620
630
640
650
661
676
682
691
701
710
721
730
740
750
760
770
781
797
802
811
821
830
841
850
860
870
880
890
900
911
927
933
941
951
960
970
981
990
1000
1010
1020
1030
1040
1051

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