81111: Near Repdigit 811..11
First few terms (base 10): \[[81^*_{10}]_n=\{8,81,811,8111,81111,\ldots\}\]
General Formula:\[[81^*_{10}]_n={73\cdot10^{n}-1\over9}\]
Equivalent Patterns: (none)
See Also: Factorization of 811..11 on stdkmd.net
Table
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