77771: Near Repdigit 77..771

First few terms (base 10): \[[7^*1_{10}]_n=\{1,71,771,7771,77771,\ldots\}\]

General Formula:\[[7^*1_{10}]_n={70\cdot10^{n}-61\over9}\]

Equivalent Patterns: (none)

See Also: Factorization of 77..771 on stdkmd.net

Table

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