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A370220 as a simple table

na(n)
11
21
33
41
52
61
73
85
91
103
114
121
132
145
151
162
174
181
192
203
211
223
235
247
251
263
275
286
291
303
314
327
331
343
354
366
371
383
394
405
411
422
435
447
451
462
475
486
491
502
514
527
531
542
554
566
571
582
594
605
611
622
633
647
651
662
673
686
691
702
713
725
731
742
753
764
771
783
795
807
819
821
833
845
857
868
871
883
895
906
919

[1,1,3,1,2,1,3,5,1,3,4,1,2,5,1,2,4,1,2,3,1,3,5,7,
 1,3,5,6,1,3,4,7,1,3,4,6,1,3,4,5,1,2,5,7,1,2,5,6,1,
 2,4,7,1,2,4,6,1,2,4,5,1,2,3,7,1,2,3,6,1,2,3,5,1,2,
 3,4,1,3,5,7,9,1,3,5,7,8,1,3,5,6,9]