25559: Quasi Repdigit 255..559

First few terms (base 10): \[[25^*9_{10}]_n=\{29,259,2559,25559,255559,\ldots\}\]

General Formula:\[[25^*9_{10}]_n={230\cdot10^{n}+31\over9}\]

Equivalent Patterns: \[[51^*8_{10}]_n=2\cdot[25^*9_{10}]_n\]

See Also: Factorization of 255..559 on stdkmd.net

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