18884: Quasi Repdigit 188..884
First few terms (base 10): \[[18^*4_{10}]_n=\{14,184,1884,18884,188884,\ldots\}\]
General Formula:\[[18^*4_{10}]_n=2\cdot{85\cdot10^{n}-22\over9}\]
Equivalent Patterns: \[[94^*2_{10}]_n=[18^*4_{10}]_{n+1}/2\]
See Also: Factorization of 944..442 on stdkmd.net
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