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A147693 as a simple table

na(n)
20
31
40
50
61
71
82
90
100
110
121
131
141
152
160
170
182
193
201
211
220
234
242
250
261
270
283
291
302
311
324
330
340
350
362
375
381
391
401
413
426
432
440
450
462
474
480
493
501
511
520
530
541
554
562
570
581
591
602
615
623
631
642
652
663
676
684
690
700
710
723
734
747
755
761
771
781
794
805
818
826
832
840
850
862
870
886
899
907
913
921
931
940
951
960
9710
988
994
1002

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