login

A343591 as a simple table

na(n)
12
23
35
47
523
629
741
843
947
1061
1167
1283
1389
14101
15181
16383
17727
18787
19929
2018181
2132323
2272727
2374747
2478787
2594949
261212121
271616161
28323232323
29383838383
30727272727
31929292929
32989898989
3312121212121
3414141414141
3532323232323
36383838383838383
3738383838383838383
3872727272727272727

[2,3,5,7,23,29,41,43,47,61,67,83,89,101,181,383,
 727,787,929,18181,32323,72727,74747,78787,94949,
 1212121,1616161,323232323,383838383,727272727,
 929292929,989898989,12121212121,14141414141,
 32323232323,383838383838383,38383838383838383,
 72727272727272727]