68887: Quasi Repdigit 688..887

First few terms (base 10): \[[68^*7_{10}]_n=\{67,687,6887,68887,688887,\ldots\}\]

General Formula:\[[68^*7_{10}]_n={620\cdot10^{n}-17\over9}\]

Equivalent Patterns: (none)

See Also: Factorization of 688..887 on stdkmd.net

Table

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