37777: Near Repdigit 377..77

First few terms (base 10): \[[37^*_9]_n=\{3,34,313,2824,25423,\ldots\}\]

First few terms (base 9): \[\{\text{3},\text{37},\text{377},\text{3777},\text{37777},\ldots\}\]

General Formula:\[[37^*_9]_n={31\cdot9^{n}-7\over8}\]

Equivalent Patterns: \[[76^*5_9]_n=2\cdot[37^*_9]_{n+1}\]

Table

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