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A020919 as a simple table

na(n)
01
11
22
33
45
57
60
74
80
98
109
111
120
132
143
150
160
170
180
196
200
210
221
231
242
250
265
277
280
290
305
310
320
331
341
350
363
370
380
390
404
410
420
430
441
451
462
473
485
490
500
510
520
538
540
551
560
572
580
590
607
610
620
636
640
659
661
671
682
693
705
717
720
734
740
750
769
771
780
792
803
810
820
830
840
850
868
870
881
891
902
913
925
937
940
954
960
978
980
991
1001
1012
1023
1035
1040

[1,1,2,3,5,7,0,4,0,8,9,1,0,2,3,0,0,0,0,6,0,0,1,1,
 2,0,5,7,0,0,5,0,0,1,1,0,3,0,0,0,4,0,0,0,1,1,2,3,5,
 0,0,0,0,8,0,1,0,2,0,0,7,0,0,6,0,9,1,1,2,3,5,7,0,4,
 0,0,9,1,0,2,3,0,0,0,0,0,8,0,1,1,2,3,5,7,0,4,0,8,0,
 1,1,2,3,5,0]