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A072457 as a simple table

na(n)
00
11
21
31
42
53
61
73
82
91
104
113
123
133
144
153
162
173
181
193
207
212
224
233
243
253
264
271
287
293
303
313
322
332
344
359
362
373
384
393
407
413
426
433
447
452
464
473
482
493
504
514
527
533
541
559
567
574
584
593
606
613
624
634
642
659
664
673
687
693
7013
713
722
733
744
752
767
779
784
793
807
811
824
833
848
859
864
872
887
893
904
919
927
933
944
959
963
973
984
993
1007
1013
1023
1033
1047

[0,1,1,1,2,3,1,3,2,1,4,3,3,3,4,3,2,3,1,3,7,2,4,3,
 3,3,4,1,7,3,3,3,2,2,4,9,2,3,4,3,7,3,6,3,7,2,4,3,2,
 3,4,4,7,3,1,9,7,4,4,3,6,3,4,4,2,9,4,3,7,3,13,3,2,
 3,4,2,7,9,4,3,7,1,4,3,8,9,4,2,7,3,4,9,7,3,4,9,3,3,
 4,3,7,3,3,3,7]