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A373557 as a simple table

na(n)
12
23
34
44
53
65
75
83
95
104
116
126
133
146
154
166
175
186
195
204
217
227
233
247
254
267
275
287
295
304
317
326
337
346
354
367
376
385
398
408
413
428
434
448
455
468
475
484
498
506
518
526
534
548
556
565
578
587
598
607
614
628
637
645
658
667
676
688
697
706
715
729
739
743
759
764
779
785
799
805
814
829
836
849
856
864
879
886
895

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