81115: Quasi Repdigit 811..115

First few terms (base 10): \[[81^*5_{10}]_n=\{85,815,8115,81115,811115,\ldots\}\]

General Formula:\[[81^*5_{10}]_n=5\cdot{146\cdot10^{n}+7\over9}\]

Equivalent Patterns: (none)

See Also: Factorization of 811..115 on stdkmd.net

Table

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