11311: Near Repdigit Palindrome 11..11311..11

First few terms (base 10): \[[1^*31^*_6]_n=\{3,55,1627,56419,2018131,\ldots\}\]

First few terms (base 6): \[\{\text{3},\text{131},\text{11311},\text{1113111},\text{111131111},\ldots\}\]

General Formula:\[[1^*31^*_6]_n={6\cdot6^{2n}+10\cdot6^{n}-1\over5}\]

Equivalent Patterns: (none)

Table

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