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A168427 as a simple table

na(n)
01
13
29
327
421
53
69
727
821
93
109
1127
1221
133
149
1527
1621
173
189
1927
2021
213
229
2327
2421
253
269
2727
2821
293
309
3127
3221
333
349
3527
3621
373
389
3927
4021
413
429
4327
4421
453
469
4727
4821
493
509
5127
5221
533
549
5527
5621
573
589
5927
6021
613
629
6327
6421
653
669
6727
6821
693
709
7127
7221
733
749
7527
7621
773
789
7927
8021
813
829
8327

[1,3,9,27,21,3,9,27,21,3,9,27,21,3,9,27,21,3,9,27,
 21,3,9,27,21,3,9,27,21,3,9,27,21,3,9,27,21,3,9,27,
 21,3,9,27,21,3,9,27,21,3,9,27,21,3,9,27,21,3,9,27,
 21,3,9,27,21,3,9,27,21,3,9,27,21,3,9,27,21,3,9,27,
 21,3,9,27]