54444: Near Repdigit 544..44

First few terms (base 10): \[[54^*_{10}]_n=\{5,54,544,5444,54444,\ldots\}\]

General Formula:\[[54^*_{10}]_n={49\cdot10^{n}-4\over9}\]

Equivalent Patterns: \[[272^*_{10}]_n=[54^*_{10}]_{n+1}/2\]

See Also: Factorization of 544..44 on stdkmd.net

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