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A118820 as a simple table

na(n)
11
23
35
47
59
611
713
833
935
1055
1157
1277
1379
1499
15101
1613
1733
1835
1955
2057
2177
2279
2399
24101
2513
2633
2735
2855
2957
3077
3179
3299
33101
3413
3533
3635
3755
3857
3977
4079
4199
42101
4313
4433
4535
4655
4757
4877
4979
5099
51101
5213
5333
5435
5555
5657
5777
5879
5999
60101
6113
6233
6335
6455
6557
6677
6779
6899
69101

[1,3,5,7,9,11,13,33,35,55,57,77,79,99,101,13,33,
 35,55,57,77,79,99,101,13,33,35,55,57,77,79,99,101,
 13,33,35,55,57,77,79,99,101,13,33,35,55,57,77,79,
 99,101,13,33,35,55,57,77,79,99,101,13,33,35,55,57,
 77,79,99,101]