22225: Near Repdigit 22..225

First few terms (base 10): \[[2^*5_7]_n=\{5,19,117,803,5605,\ldots\}\]

First few terms (base 7): \[\{\text{5},\text{25},\text{225},\text{2225},\text{22225},\ldots\}\]

General Formula:\[[2^*5_7]_n={7\cdot7^{n}+8\over3}\]

Equivalent Patterns: (none)

Table

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