11115: Near Repdigit 11..115

First few terms (base 10): \[[1^*5_7]_n=\{5,12,61,404,2805,\ldots\}\]

First few terms (base 7): \[\{\text{5},\text{15},\text{115},\text{1115},\text{11115},\ldots\}\]

General Formula:\[[1^*5_7]_n={7\cdot7^{n}+23\over6}\]

Equivalent Patterns: (none)

Table

No table data.