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A246314 as a simple table

na(n)
01
19
29
337
49
565
637
7157
89
981
1065
11237
1237
13293
14157
15713
169
1781
1881
19333
2065
21473
22237
231077
2437
25333
26293
271129
28157
291285
30713
312737
329
3381
3481
35333
3681
37585
38333
391413
4065
41585
42473
431733
44237
451933
461077
474337
4837
49333
50333
511369
52293
532125
541129
554969
56157
571413
581285
595041
60713
615561
622737
6311421
649
6581

[1,9,9,37,9,65,37,157,9,81,65,237,37,293,157,713,
 9,81,81,333,65,473,237,1077,37,333,293,1129,157,
 1285,713,2737,9,81,81,333,81,585,333,1413,65,585,
 473,1733,237,1933,1077,4337,37,333,333,1369,293,
 2125,1129,4969,157,1413,1285,5041,713,5561,2737,
 11421,9,81]