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A138279 as a simple table

na(n)
00
11
21
32
45
56
61
72
85
96
101
112
125
136
141
152
165
176
181
192
205
216
221
232
245
256
261
272
285
296
301
312
325
336
341
352
365
376
381
392
405
416
421
432
445
456
461
472
485
496
501
512
525
536
541
552
565
576
581
592
605
616
621
632
645
656
661
672
685
696
701
712
725
736
741
752
765
776
781
792
805
816
821
832
845
856

[0,1,1,2,5,6,1,2,5,6,1,2,5,6,1,2,5,6,1,2,5,6,1,2,
 5,6,1,2,5,6,1,2,5,6,1,2,5,6,1,2,5,6,1,2,5,6,1,2,5,
 6,1,2,5,6,1,2,5,6,1,2,5,6,1,2,5,6,1,2,5,6,1,2,5,6,
 1,2,5,6,1,2,5,6,1,2,5,6]