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A221836 as a simple table

na(n)
10
20
30
40
50
60
70
80
91
100
110
120
131
141
152
160
170
180
190
201
210
220
230
240
250
260
270
280
290
300
310
320
331
341
350
360
370
380
390
400
410
420
430
440
450
460
470
480
490
500
511
520
531
541
552
560
570
580
590
600
610
620
630
640
650
660
670
680
690
700
711
720
730
740
751
761
770
780
790
800
810
821
831
840
850
860
870

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