12228: Quasi Repdigit 122..228

First few terms (base 10): \[[12^*8_9]_n=\{17,107,917,8207,73817,\ldots\}\]

First few terms (base 9): \[\{\text{18},\text{128},\text{1228},\text{12228},\text{122228},\ldots\}\]

General Formula:\[[12^*8_9]_n={45\cdot9^{n}+23\over4}\]

Equivalent Patterns: (none)

Table

No table data.