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A292251 as a simple table

na(n)
10
20
31
40
50
60
71
80
90
100
110
120
132
140
152
160
170
180
191
200
210
220
231
240
250
260
272
280
290
300
310
320
331
340
351
360
371
380
390
400
410
420
431
440
450
460
473
480
490
500
511
520
531
540
550
560
570
580
590
600
610
620
631
640
651
660
672
680
690
700
710
720
730
740
751
760
772
780
791
800
810
820
832
840
850
860
871
880
890
900
910
920
931
940
954
960
971
980
990
1000
1010
1020
1033
1040
1050
1060
1070
1080
1091
1100
1110
1120
1130
1140
1151
1160
1171
1180
1191
1200

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