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A304535 as a simple table

na(n)
01
12
23
32
43
52
64
72
84
95
102
114
126
134
147
153
166
174
188
194
207
219
226
2310
244
256
268
275
2811
296
308
312
324
336
344
356
364
375
384
395
408
412
424
436
444
456
464
476
483
496
5011
513
526
5312
546
559
567
579
587
5910
605
6111
6213
6311
6414
656
6612
6715
6811
6913
7012
7116
724
735
748
755
768
775
788
796
8017
815
8218
835
8411
8519
8618
8720
8811
8919
905
918
9216
938
9417
952
964
975
984
995
1004
1015
1024
1035
10418
1054

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