55355: Near Repdigit Palindrome 55..55355..55

First few terms (base 10): \[[5^*35^*_6]_n=\{3,203,7703,279503,10075103,\ldots\}\]

First few terms (base 6): \[\{\text{3},\text{535},\text{55355},\text{5553555},\text{555535555},\ldots\}\]

General Formula:\[[5^*35^*_6]_n=6\cdot6^{2n}-2\cdot6^{n}-1\]

Equivalent Patterns: (none)

Table

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