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A331255 as a simple table

na(n)
11
22
32
42
53
63
73
83
94
103
114
124
134
144
155
165
174
185
194
203
215
225
235
246
254
265
276
286
295
306
315
326
334
346
355
366
377
386
397
405
416
427
437
446
457
466
477
487
496
508
516
528
535
547
557
567
578
584
596
608
617
625
638
647
658
667
678
688
697
709
717
728
739
746
758
769
777
788
799
808
819
827
838
846
856
869
878

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