13111: Near Repdigit 1311..11

First few terms (base 10): \[[131^*_5]_n=\{8,41,206,1031,5156,\ldots\}\]

First few terms (base 5): \[\{\text{13},\text{131},\text{1311},\text{13111},\text{131111},\ldots\}\]

General Formula:\[[131^*_5]_n={33\cdot5^{n}-1\over4}\]

Equivalent Patterns: (none)

Table

No table data.