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A033927 as a simple table

na(n)
11
21
32
43
54
65
76
81
92
103
114
125
136
147
152
163
174
185
196
207
218
223
234
245
256
267
278
289
294
305
316
327
338
349
3510
365
376
387
398
409
4110
4211
436
447
458
469
4710
4811
4912
502
513
524
535
546
557
568
573
584
595
606
617
628
639
644
655
666
677
688
699
7010
715
726
737
748
759
7610
7711
786
797
808
819
8210
8311
8412
857
868
879
8810
8911
9012
9113
928
939
9410
9511

[1,1,2,3,4,5,6,1,2,3,4,5,6,7,2,3,4,5,6,7,8,3,4,5,
 6,7,8,9,4,5,6,7,8,9,10,5,6,7,8,9,10,11,6,7,8,9,10,
 11,12,2,3,4,5,6,7,8,3,4,5,6,7,8,9,4,5,6,7,8,9,10,
 5,6,7,8,9,10,11,6,7,8,9,10,11,12,7,8,9,10,11,12,
 13,8,9,10,11]