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A273632 as a simple table

na(n)
12
22
32
42
53
63
72
82
92
102
112
1218
1318
1418
153
164
173
183
194
205
216
223
233
243
256
263
273
283
294
303
313
323
334
343
353
364
374
385
393
403
413
4220
4317
4417
456
463
473
483
493
503
516
525
534
546
555
563
573
583
593
6019
613
623
633
6419
653
663
673
683
693
705
714
725
733
743
754
763
773
784
793
803
813
8246
8346
843

[2,2,2,2,3,3,2,2,2,2,2,18,18,18,3,4,3,3,4,5,6,3,3,
 3,6,3,3,3,4,3,3,3,4,3,3,4,4,5,3,3,3,20,17,17,6,3,
 3,3,3,3,6,5,4,6,5,3,3,3,3,19,3,3,3,19,3,3,3,3,3,5,
 4,5,3,3,4,3,3,4,3,3,3,46,46,3]