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A049839 as a simple table

na(n)
12
23
34
44
55
65
75
86
96
106
116
126
137
147
157
167
177
187
197
207
218
228
237
248
258
268
278
288
298
308
318
328
338
349
358
369
378
388
399
409
419
429
439
449
459
469
479
489
499
509
519
529
539
549
5510
569
579
5810
599
609
619
629
6310
649
6510
6610
6710
6810
6910
709

[2,3,4,4,5,5,5,6,6,6,6,6,7,7,7,7,7,7,7,7,8,8,7,8,
 8,8,8,8,8,8,8,8,8,9,8,9,8,8,9,9,9,9,9,9,9,9,9,9,9,
 9,9,9,9,9,10,9,9,10,9,9,9,9,10,9,10,10,10,10,10,9]