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A301989 as a simple table

na(n)
10
20
30
40
50
61
70
80
90
100
110
122
130
140
151
160
170
181
190
201
210
220
230
243
250
260
270
281
290
303
310
320
330
340
351
362
370
380
390
402
410
422
430
440
452
460
470
484
490
500
510
520
530
542
550
562
570
580
590
606
610
620
631
640
650
662
670
680
690
702
710
724
730
740
751
760
771
781
790
803
810
820
830
845
850
860
870

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