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A305748 as a simple table

na(n)
12
23
34
45
54
65
74
87
97
105
118
125
134
147
159
167
175
188
195
205
218
227
2310
2410
255
264
275
284
2911
3016
317
327
337
3411
355
369
378
387
399
407
417
4211
434
445
458
4618
4714
485
494
507
517
527
5313
549
559
567
575
588
595
607
6117
6216
635
644
6511
6617
6711
6811
694
707
7110
7211
739
748
757
7610
7710
788
7913
8011
817
8211
835
848
857
8610
8710
885
894
9010
9116
9210
938
9410
957
9612
9713

[2,3,4,5,4,5,4,7,7,5,8,5,4,7,9,7,5,8,5,5,8,7,10,
 10,5,4,5,4,11,16,7,7,7,11,5,9,8,7,9,7,7,11,4,5,8,
 18,14,5,4,7,7,7,13,9,9,7,5,8,5,7,17,16,5,4,11,17,
 11,11,4,7,10,11,9,8,7,10,10,8,13,11,7,11,5,8,7,10,
 10,5,4,10,16,10,8,10,7,12,13]