44447: Near Repdigit 44..447
First few terms (base 10): \[[4^*7_{10}]_n=\{7,47,447,4447,44447,\ldots\}\]
General Formula:\[[4^*7_{10}]_n={40\cdot10^{n}+23\over9}\]
Equivalent Patterns: (none)
See Also: Factorization of 44..447 on stdkmd.net
Table
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