login

A260829 as a simple table

na(n)
15
27
367
4557
5577
6677
7757
85557
95657
106577
117577
127757
1355667
1456767
1557557
1657667
1765557
1865657
1965677
2065777
2167567
2267577
2367757
2467777
2575557
2675577
2775767
2876667
2976757
3076777
3177557
32555557
33555677
34555767
35557567
36565567
37565667
38566557
39566567

[5,7,67,557,577,677,757,5557,5657,6577,7577,7757,
 55667,56767,57557,57667,65557,65657,65677,65777,
 67567,67577,67757,67777,75557,75577,75767,76667,
 76757,76777,77557,555557,555677,555767,557567,
 565567,565667,566557,566567]