27779: Quasi Repdigit 277..779

First few terms (base 10): \[[27^*9_{10}]_n=\{29,279,2779,27779,277779,\ldots\}\]

General Formula:\[[27^*9_{10}]_n={250\cdot10^{n}+11\over9}\]

Equivalent Patterns: \[[83^*7_{10}]_n=3\cdot[27^*9_{10}]_n\] \[[1^*6_{10}]_n=4\cdot[27^*9_{10}]_{n-2}\] \[[5^*8_{10}]_n=2\cdot[27^*9_{10}]_{n-1}\] \[[2^*32_{10}]_n=8\cdot[27^*9_{10}]_{n-1}\] \[[6^*96_{10}]_n=24\cdot[27^*9_{10}]_{n-1}\] \[[4^*64_{10}]_n=16\cdot[27^*9_{10}]_{n-1}\]

See Also: Factorization of 277..779 on stdkmd.net

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