72222: Near Repdigit 722..22

First few terms (base 10): \[[72^*_9]_n=\{7,65,587,5285,47567,\ldots\}\]

First few terms (base 9): \[\{\text{7},\text{72},\text{722},\text{7222},\text{72222},\ldots\}\]

General Formula:\[[72^*_9]_n={29\cdot9^{n}-1\over4}\]

Equivalent Patterns: (none)

Table

No table data.