87777: Near Repdigit 877..77

First few terms (base 10): \[[87^*_9]_n=\{8,79,718,6469,58228,\ldots\}\]

First few terms (base 9): \[\{\text{8},\text{87},\text{877},\text{8777},\text{87777},\ldots\}\]

General Formula:\[[87^*_9]_n={71\cdot9^{n}-7\over8}\]

Equivalent Patterns: (none)

Table

No table data.