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A218800 as a simple table

na(n)
01
12
22
33
42
52
63
72
82
94
102
115
123
132
142
153
162
175
184
195
202
213
225
232
243
252
262
275
282
292
303
312
322
338
345
352
364
372
385
393
402
415
423
435
445
454
462
472
483
492
502
518
522
532
545
555
562
578
582
595
603
612
622
634
642
652
668
675
685
693
702
712
724
735
742
753
765
775
783
792
802
816
825
835
843
855
865

[1,2,2,3,2,2,3,2,2,4,2,5,3,2,2,3,2,5,4,5,2,3,5,2,
 3,2,2,5,2,2,3,2,2,8,5,2,4,2,5,3,2,5,3,5,5,4,2,2,3,
 2,2,8,2,2,5,5,2,8,2,5,3,2,2,4,2,2,8,5,5,3,2,2,4,5,
 2,3,5,5,3,2,2,6,5,5,3,5,5]