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A213711 as a simple table

na(n)
00
11
22
33
43
54
64
74
85
95
105
115
125
136
146
156
166
176
186
196
206
216
227
237
247
257
267
277
287
297
307
317
327
337
347
357
367
377
387
398
408
418
428
438
448
458
468
478
488
498
508
518
528
538
548
558
568
578
588
598
608
618
628
638
648
658
668
678
688
699
709
719
729
739
749
759
769
779
789
799
809
819
829
839
849
859
869
879
889
899
909
919
929
939
949
959
969
979
989
999
1009
1019
1029
1039
1049
1059
1069
1079
1089
1099
1109
1119
1129
1139
1149
1159
1169
1179
1189
1199

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