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A166866 as a simple table

na(n)
01
11
21
33
41
52
61
73
85
91
102
113
121
133
145
157
161
172
183
194
201
213
225
237
249
251
262
273
284
295
301
313
325
337
349
3511
361
372
383
394
405
416
421
433
445
457
469
4711
4813
491
502
513
524
535
546
557
561
573
585
597
609
6111
6213
6315
641
652
663
674
685
696
707
718
721
733
745
757
769
7711
7813
7915
8017
811
822
833
844
855
866
877
888
899

[1,1,1,3,1,2,1,3,5,1,2,3,1,3,5,7,1,2,3,4,1,3,5,7,
 9,1,2,3,4,5,1,3,5,7,9,11,1,2,3,4,5,6,1,3,5,7,9,11,
 13,1,2,3,4,5,6,7,1,3,5,7,9,11,13,15,1,2,3,4,5,6,7,
 8,1,3,5,7,9,11,13,15,17,1,2,3,4,5,6,7,8,9]