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A293664 as a simple table

na(n)
01
12
22
34
42
54
64
77
82
94
104
118
124
137
148
1511
162
174
184
198
204
218
227
2312
244
257
268
2713
288
2912
3013
3116
322
334
344
358
364
378
388
3913
404
418
427
4314
448
4513
4614
4717
484
497
508
5113
528
5314
5413
5518
568
5712
5814
5919
6015
6118
6219
6322
642
654
664
678
684
698
708
7114
724
738
748
7515
767
7712

[1,2,2,4,2,4,4,7,2,4,4,8,4,7,8,11,2,4,4,8,4,8,7,
 12,4,7,8,13,8,12,13,16,2,4,4,8,4,8,8,13,4,8,7,14,
 8,13,14,17,4,7,8,13,8,14,13,18,8,12,14,19,15,18,
 19,22,2,4,4,8,4,8,8,14,4,8,8,15,7,12]