86667: Quasi Repdigit 866..667

First few terms (base 10): \[[86^*7_9]_n=\{79,709,6379,57409,516679,\ldots\}\]

First few terms (base 9): \[\{\text{87},\text{867},\text{8667},\text{86667},\text{866667},\ldots\}\]

General Formula:\[[86^*7_9]_n={315\cdot9^{n}+1\over4}\]

Equivalent Patterns: (none)

Table

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