75777: Near Repdigit 7577..77

First few terms (base 10): \[[757^*_9]_n=\{68,619,5578,50209,451888,\ldots\}\]

First few terms (base 9): \[\{\text{75},\text{757},\text{7577},\text{75777},\text{757777},\ldots\}\]

General Formula:\[[757^*_9]_n={551\cdot9^{n}-7\over8}\]

Equivalent Patterns: (none)

Table

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