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A308641 as a simple table

na(n)
11
21
32
42
52
63
72
83
92
102
113
121
133
142
152
164
173
186
192
203
214
221
235
243
254
264
274
288
293
305
316
325
334
343
354
362
374
386
395
404
415
426
435
444
455
464
473
484
495
501
515
526
536
544
552
567
574
585
594
604
614
625
636
643
655
667
677
685
693
705
715
725
737
746
753
767
776
788
795
805
817
825
837
844
852
868
876
886
893
903
917
922
939
944
957
966
975
987
992
1008

[1,1,2,2,2,3,2,3,2,2,3,1,3,2,2,4,3,6,2,3,4,1,5,3,
 4,4,4,8,3,5,6,5,4,3,4,2,4,6,5,4,5,6,5,4,5,4,3,4,5,
 1,5,6,6,4,2,7,4,5,4,4,4,5,6,3,5,7,7,5,3,5,5,5,7,6,
 3,7,6,8,5,5,7,5,7,4,2,8,6,6,3,3,7,2,9,4,7,6,5,7,2,
 8]