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A284639 as a simple table

na(n)
21
31
43
51
62
71
84
93
102
111
124
131
142
152
168
171
184
191
204
212
222
231
247
253
262
274
284
291
305
311
328
332
342
352
3611
371
382
392
407
411
425
431
444
454
462
471
4812
493
504
512
524
531
547
552
567
572
582
591
6011
611
622
634
6417
652
665
671
684
692
705
711
7216
731
742
754
764
772
785
791
8012
818
822
831
8411
852

[1,1,3,1,2,1,4,3,2,1,4,1,2,2,8,1,4,1,4,2,2,1,7,3,
 2,4,4,1,5,1,8,2,2,2,11,1,2,2,7,1,5,1,4,4,2,1,12,3,
 4,2,4,1,7,2,7,2,2,1,11,1,2,4,17,2,5,1,4,2,5,1,16,
 1,2,4,4,2,5,1,12,8,2,1,11,2]