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A173539 as a simple table

na(n)
10
20
32
40
50
63
70
82
93
104
110
120
130
144
155
160
172
183
194
205
216
220
230
243
250
265
276
287
290
302
310
324
335
346
357
368
370
380
393
404
410
426
437
448
459
460
472
483
494
505
516
527
538
549
5510
560
570
580
590
605
610
627
638
649
6510
6611
670
682
693
704
715
726
737
748
759
7610
7711
7812
790
800
813
824
835
846
850
868
879
8810
8911
9012
9113
920
932
940
954
960
976
987
998
1009

[0,0,2,0,0,3,0,2,3,4,0,0,0,4,5,0,2,3,4,5,6,0,0,3,
 0,5,6,7,0,2,0,4,5,6,7,8,0,0,3,4,0,6,7,8,9,0,2,3,4,
 5,6,7,8,9,10,0,0,0,0,5,0,7,8,9,10,11,0,2,3,4,5,6,
 7,8,9,10,11,12,0,0,3,4,5,6,0,8,9,10,11,12,13,0,2,
 0,4,0,6,7,8,9]