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A278570 as a simple table

na(n)
12
22
32
41
52
62
72
82
92
103
111
122
131
142
151
161
172
182
193
202
212
222
232
241
251
263
272
282
291
302
312
322
332
341
351
362
371
381
393
402
412
422
432
442
452
462
472
482
492
502
512
521
532
541
552
561
572
583
592
602
612
621
632
643
651
661
671
682
692
702
711
722
733
741
752
763
772
782
791
802
812
822
831
842
851
862
872
882
892
901
912
922
932
942
953
961
972
982
992
1001
1013
1022

[2,2,2,1,2,2,2,2,2,3,1,2,1,2,1,1,2,2,3,2,2,2,2,1,
 1,3,2,2,1,2,2,2,2,1,1,2,1,1,3,2,2,2,2,2,2,2,2,2,2,
 2,2,1,2,1,2,1,2,3,2,2,2,1,2,3,1,1,1,2,2,2,1,2,3,1,
 2,3,2,2,1,2,2,2,1,2,1,2,2,2,2,1,2,2,2,2,3,1,2,2,2,
 1,3,2]