55525: Near Repdigit 55..5525

First few terms (base 10): \[[5^*25_7]_n=\{19,264,1979,13984,98019,\ldots\}\]

First few terms (base 7): \[\{\text{25},\text{525},\text{5525},\text{55525},\text{555525},\ldots\}\]

General Formula:\[[5^*25_7]_n={245\cdot7^{n}-131\over6}\]

Equivalent Patterns: (none)

Table

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