21117: Quasi Repdigit 211..117

First few terms (base 10): \[[21^*7_9]_n=\{25,178,1555,13948,125485,\ldots\}\]

First few terms (base 9): \[\{\text{27},\text{217},\text{2117},\text{21117},\text{211117},\ldots\}\]

General Formula:\[[21^*7_9]_n={153\cdot9^{n}+47\over8}\]

Equivalent Patterns: (none)

Table

No table data.