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A087050 as a simple table

na(n)
12
22
33
42
54
63
72
82
95
103
112
124
136
142
152
163
174
187
195
202
213
222
232
243
258
262
276
285
292
304
319
322
332
343
352
364
377
383
3910
402
416
424
432
443
452
4611
472
485
493
508
512
523
532
542
5512
567
572
585
592
603
612
624
639
642
652
6613
673
682
695
704
716
722
732
743
758
7614
773
7810
792
803
814
822
836
842
854
8615
872
882
893
902
914
9211
939
942
957
962
975
986
9916
1002
1013

[2,2,3,2,4,3,2,2,5,3,2,4,6,2,2,3,4,7,5,2,3,2,2,3,
 8,2,6,5,2,4,9,2,2,3,2,4,7,3,10,2,6,4,2,3,2,11,2,5,
 3,8,2,3,2,2,12,7,2,5,2,3,2,4,9,2,2,13,3,2,5,4,6,2,
 2,3,8,14,3,10,2,3,4,2,6,2,4,15,2,2,3,2,4,11,9,2,7,
 2,5,6,16,2,3]