25556: Quasi Repdigit 255..556

First few terms (base 10): \[[25^*6_7]_n=\{20,139,972,6803,47620,\ldots\}\]

First few terms (base 7): \[\{\text{26},\text{256},\text{2556},\text{25556},\text{255556},\ldots\}\]

General Formula:\[[25^*6_7]_n={119\cdot7^{n}+1\over6}\]

Equivalent Patterns: \[[54^*5_7]_n=2\cdot[25^*6_7]_n\]

Table

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