25554: Quasi Repdigit 255..554

First few terms (base 10): \[[25^*4_9]_n=\{22,211,1912,17221,155002,\ldots\}\]

First few terms (base 9): \[\{\text{24},\text{254},\text{2554},\text{25554},\text{255554},\ldots\}\]

General Formula:\[[25^*4_9]_n={189\cdot9^{n}-13\over8}\]

Equivalent Patterns: \[[7^*3_9]_n=3\cdot[25^*4_9]_{n-1}\]

Table

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