18111: Near Repdigit 1811..11

First few terms (base 10): \[[181^*_9]_n=\{17,154,1387,12484,112357,\ldots\}\]

First few terms (base 9): \[\{\text{18},\text{181},\text{1811},\text{18111},\text{181111},\ldots\}\]

General Formula:\[[181^*_9]_n={137\cdot9^{n}-1\over8}\]

Equivalent Patterns: (none)

Table

No table data.