11121: Near Repdigit 11..1121

First few terms (base 10): \[[1^*21_6]_n=\{13,49,265,1561,9337,\ldots\}\]

First few terms (base 6): \[\{\text{21},\text{121},\text{1121},\text{11121},\text{111121},\ldots\}\]

General Formula:\[[1^*21_6]_n={36\cdot6^{n}+29\over5}\]

Equivalent Patterns: \[[2^*42_6]_n=2\cdot[1^*21_6]_n\]

Table

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