11121: Near Repdigit 11..1121

First few terms (base 10): \[[1^*21_3]_n=\{7,16,43,124,367,\ldots\}\]

First few terms (base 3): \[\{\text{21},\text{121},\text{1121},\text{11121},\text{111121},\ldots\}\]

General Formula:\[[1^*21_3]_n={9\cdot3^{n}+5\over2}\]

Equivalent Patterns: (none)

Table

No table data.