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A331238 as a simple table

na(n)
11
21
30
41
50
60
71
81
90
100
110
120
131
141
151
160
170
180
190
200
210
221
232
241
251
261
270
280
290
300
310
320
330
340
350
363
370
382
393
401
411
421
430
440
450
460
470
480
490
500
510
520
530
540
553
560
573
587
592
602
613
621
631
641
650
660
670
680
690
700
710
720
730
740
750
760
770
780
790
800
813
823
834
848
854
867
877
882
893
903
911
921
931

[1,1,0,1,0,0,1,1,0,0,0,0,1,1,1,0,0,0,0,0,0,1,2,1,
 1,1,0,0,0,0,0,0,0,0,0,3,0,2,3,1,1,1,0,0,0,0,0,0,0,
 0,0,0,0,0,3,0,3,7,2,2,3,1,1,1,0,0,0,0,0,0,0,0,0,0,
 0,0,0,0,0,0,3,3,4,8,4,7,7,2,3,3,1,1,1]