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A378881 as a simple table

na(n)
11
22
31
41
53
62
73
81
92
103
112
121
132
141
154
163
172
183
191
204
212
224
233
241
251
262
275
283
294
302
311
325
333
344
353
361
376
385
394
402
412
421
437
446
453
465
474
482
491
507
516
524
533
545
553
561
578
587
596
605
614
622
632
641
659
668
677
683
696
705
714
722
731
749
758
767
775
784
793
806
813
821
8310
849
858
867
876
885
894
902

[1,2,1,1,3,2,3,1,2,3,2,1,2,1,4,3,2,3,1,4,2,4,3,1,
 1,2,5,3,4,2,1,5,3,4,3,1,6,5,4,2,2,1,7,6,3,5,4,2,1,
 7,6,4,3,5,3,1,8,7,6,5,4,2,2,1,9,8,7,3,6,5,4,2,1,9,
 8,7,5,4,3,6,3,1,10,9,8,7,6,5,4,2]