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A303297 as a simple table

na(n)
11
21
32
42
53
62
73
83
94
103
115
124
133
144
155
164
176
185
194
207
215
226
234
245
257
266
275
288
296
307
315
329
336
348
357
365
376
389
397
408
416
4210
437
449
458
466
4711
487
4910
506
518
529
537
5411
558
5610
579
587
5912
608
6111
629
6310
647
6513
668
6712
687
699
7011
7110
728
7313
749
7512
7610
7711
788
7914
809
8113
828
8310
8412
8515
8611
879
8814
898
9010
9113
9211
9312
949
9515

[1,1,2,2,3,2,3,3,4,3,5,4,3,4,5,4,6,5,4,7,5,6,4,5,
 7,6,5,8,6,7,5,9,6,8,7,5,6,9,7,8,6,10,7,9,8,6,11,7,
 10,6,8,9,7,11,8,10,9,7,12,8,11,9,10,7,13,8,12,7,9,
 11,10,8,13,9,12,10,11,8,14,9,13,8,10,12,15,11,9,
 14,8,10,13,11,12,9,15]