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A326567 as a simple table

na(n)
21
32
41
53
63
74
81
92
102
115
124
136
145
155
161
177
185
198
205
213
223
239
245
253
267
272
282
2910
302
3111
321
337
344
357
363
3712
389
394
403
4113
427
4314
447
457
465
4715
486
494
507
519
528
5316
547
554
567
575
5811
5917
607
6118
626
638
641
659
668
6719
683
6911
708
7120
727
7321
7413
758
7610
779
783
7922
807
812
827

[1,2,1,3,3,4,1,2,2,5,4,6,5,5,1,7,5,8,5,3,3,9,5,3,
 7,2,2,10,2,11,1,7,4,7,3,12,9,4,3,13,7,14,7,7,5,15,
 6,4,7,9,8,16,7,4,7,5,11,17,7,18,6,8,1,9,8,19,3,11,
 8,20,7,21,13,8,10,9,3,22,7,2,7]