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A291711 as a simple table

na(n)
11
22
31
42
53
62
73
81
92
103
112
123
134
143
154
162
173
184
193
204
211
222
233
242
253
264
273
284
292
303
314
323
334
345
354
365
373
384
395
404
415
422
433
444
453
464
475
484
495
503
514
525
534
545
551
562
573
582
593
604
613
624
632
643
654
663
674
685
694
705
713
724
735
744
755
762
773
784
793
804
815
824
835
843
854
865
874
885
896
905
916
924
935
946

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