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A069849 as a simple table

na(n)
10
20
31
40
50
60
70
80
91
100
112
120
130
140
150
160
170
180
190
200
212
220
232
240
250
260
271
280
291
300
310
320
331
340
350
360
370
380
392
400
410
420
430
440
450
460
471
480
490
500
510
520
531
540
550
560
572
580
591
600
610
620
632
640
650
660
670
680
690
700
710
720
730
740
750
760
772
780
790
800
811
820
831
840
850
860
871
880
890
900
910
920
931
940
950
960
970
980
990
1000
1012
1020
1030
1040
1050

[0,0,1,0,0,0,0,0,1,0,2,0,0,0,0,0,0,0,0,0,2,0,2,0,
 0,0,1,0,1,0,0,0,1,0,0,0,0,0,2,0,0,0,0,0,0,0,1,0,0,
 0,0,0,1,0,0,0,2,0,1,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,
 0,0,2,0,0,0,1,0,1,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0,
 0,2,0,0,0,0]