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A239621 as a simple table

na(n)
11
21
32
41
53
60
73
82
94
101
115
122
136
141
155
164
177
180
197
202
216
225
238
243
258
265
279
284
2910
301
3110
323
338
347
3511
360
3711
384
3910
407
4111
426
4313
442
4510
469
4712
487
4914
501
5115
522
5313
548
5515
564
5716
581
5913
6010
6114
629
6316
645
6517
662
6713
6812
6914
7011
7116
729
7318
745
7517
768
7719
780

[1,1,2,1,3,0,3,2,4,1,5,2,6,1,5,4,7,0,7,2,6,5,8,3,
 8,5,9,4,10,1,10,3,8,7,11,0,11,4,10,7,11,6,13,2,10,
 9,12,7,14,1,15,2,13,8,15,4,16,1,13,10,14,9,16,5,
 17,2,13,12,14,11,16,9,18,5,17,8,19,0]