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A002993 as a simple table

na(n)
00
11
24
39
41
52
63
74
86
98
101
111
121
131
141
152
162
172
183
193
204
214
224
235
245
256
266
277
287
298
309
319
321
331
341
351
361
371
381
391
401
411
421
431
441
452
462
472
482
492
502
512
522
532
542
553
563
573
583
593
603
613
623
633
644
654
664
674
684
694
704
715
725
735
745
755
765
775
786
796
806
816
826
836
847
857
867
877
887
897
908
918
928
938
948
959
969
979
989
999
1001

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