25554: Quasi Repdigit 255..554
First few terms (base 10): \[[25^*4_{10}]_n=\{24,254,2554,25554,255554,\ldots\}\]
General Formula:\[[25^*4_{10}]_n=2\cdot{115\cdot10^{n}-7\over9}\]
Equivalent Patterns: \[[76^*2_{10}]_n=3\cdot[25^*4_{10}]_n\]
See Also: Factorization of 255..554 on stdkmd.net
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