67776: Plateau 677..776

First few terms (base 10): \[[67^*6_{10}]_n=\{66,676,6776,67776,677776,\ldots\}\]

General Formula:\[[67^*6_{10}]_n=2\cdot{305\cdot10^{n}-8\over9}\]

Equivalent Patterns: (none)

See Also: Factorization of 677..776 on stdkmd.net

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