12222: Near Repdigit 122..22

First few terms (base 10): \[[12^*_3]_n=\{1,5,17,53,161,\ldots\}\]

First few terms (base 3): \[\{\text{1},\text{12},\text{122},\text{1222},\text{12222},\ldots\}\]

General Formula:\[[12^*_3]_n=2\cdot3^{n}-1\]

Equivalent Patterns: (none)

Table

No table data.