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A304685 as a simple table

na(n)
11
21
31
40
52
61
70
80
91
100
110
120
130
141
152
160
170
181
190
200
210
220
230
240
250
260
271
280
290
300
310
320
330
340
350
360
370
380
390
400
412
421
430
440
452
460
470
480
490
500
510
520
530
541
550
560
570
580
590
600
610
620
630
640
650
660
670
680
690
700
710
720
730
740
750
760
770
780
790
800
811
820
830
840
850

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