68881: Quasi Repdigit 688..881

First few terms (base 10): \[[68^*1_9]_n=\{55,559,5095,45919,413335,\ldots\}\]

First few terms (base 9): \[\{\text{61},\text{681},\text{6881},\text{68881},\text{688881},\ldots\}\]

General Formula:\[[68^*1_9]_n=63\cdot9^{n}-8\]

Equivalent Patterns: (none)

Table

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