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A270644 as a simple table

na(n)
11
22
32
42
51
62
72
81
91
102
112
121
132
142
151
161
172
181
192
202
211
221
232
241
251
262
272
281
292
301
311
322
331
341
352
362
371
382
391
401
412
421
432
442
451
461
472
481
491
502
511
522
532
541
552
561
571
582
592
601
612
622
631
642
651
661
672
681
691
702
712
721
732
741
751
762
771
782
792
801
812
822
831
841
852
861

[1,2,2,2,1,2,2,1,1,2,2,1,2,2,1,1,2,1,2,2,1,1,2,1,
 1,2,2,1,2,1,1,2,1,1,2,2,1,2,1,1,2,1,2,2,1,1,2,1,1,
 2,1,2,2,1,2,1,1,2,2,1,2,2,1,2,1,1,2,1,1,2,2,1,2,1,
 1,2,1,2,2,1,2,2,1,1,2,1]