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A278148 as a simple table

na(n)
11
21
32
41
52
63
73
81
92
102
113
125
134
141
152
162
173
183
194
205
215
227
235
241
252
262
272
283
293
304
315
325
337
349
356
361
372
382
392
403
413
423
435
444
455
467
475
487
498
507
519
5211
537
541
552
562
572
582
593
603
614
625
635
644
655
667
678
687
697
708
717
729
7311
7413
758
761
772
782
792
802
813
823
833
843
854
865
875
887
895
906
919
927
938
947
957
968
9710
9811
999
10011
10113
10215
1039

[1,1,2,1,2,3,3,1,2,2,3,5,4,1,2,2,3,3,4,5,5,7,5,1,
 2,2,2,3,3,4,5,5,7,9,6,1,2,2,2,3,3,3,5,4,5,7,5,7,8,
 7,9,11,7,1,2,2,2,2,3,3,4,5,5,4,5,7,8,7,7,8,7,9,11,
 13,8,1,2,2,2,2,3,3,3,3,4,5,5,7,5,6,9,7,8,7,7,8,10,
 11,9,11,13,15,9]