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A368147 as a simple table

na(n)
11
21
32
41
53
62
73
81
94
103
115
122
135
143
154
161
175
184
197
203
217
225
237
242
259
265
278
283
2911
304
315
321
336
345
359
364
379
387
3910
403
418
427
438
445
456
467
479
482
4911
509
5111
525
5311
548
5511
563
5710
5811
597
604
6113
625
6312
641
657
666
6717
685
6913
709
7113
724
7317
749
7510
767
771
7810
7913
803
8113

[1,1,2,1,3,2,3,1,4,3,5,2,5,3,4,1,5,4,7,3,7,5,7,2,
 9,5,8,3,11,4,5,1,6,5,9,4,9,7,10,3,8,7,8,5,6,7,9,2,
 11,9,11,5,11,8,11,3,10,11,7,4,13,5,12,1,7,6,17,5,
 13,9,13,4,17,9,10,7,1,10,13,3,13]