66661: Near Repdigit 66..661

First few terms (base 10): \[[6^*1_7]_n=\{1,43,337,2395,16801,\ldots\}\]

First few terms (base 7): \[\{\text{1},\text{61},\text{661},\text{6661},\text{66661},\ldots\}\]

General Formula:\[[6^*1_7]_n=7\cdot7^{n}-6\]

Equivalent Patterns: (none)

Table

No table data.