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A177760 as a simple table

na(n)
11
22
31
45
53
61
72
81
923
102
111
1227
133
141
152
161
174
182
191
203
212
227
231
242
253
261
275
284
292
301
316
323
332
341
3512
362
371
383
394
401
412
425
433
441
452
464
473
481
492
501
516
522
533
5421
554
567
575
588
591
602
6173
623
631
642
654
663
6726
681
692
705
711
723
739
7410
752
764
776
7820
791
803
812
8211
831
844
852
865
873
887
891
902
913
924
931
946
9529
962
973
985
998
1001

[1,2,1,5,3,1,2,1,23,2,1,27,3,1,2,1,4,2,1,3,2,7,1,
 2,3,1,5,4,2,1,6,3,2,1,12,2,1,3,4,1,2,5,3,1,2,4,3,
 1,2,1,6,2,3,21,4,7,5,8,1,2,73,3,1,2,4,3,26,1,2,5,
 1,3,9,10,2,4,6,20,1,3,2,11,1,4,2,5,3,7,1,2,3,4,1,
 6,29,2,3,5,8,1]