42221: Quasi Repdigit 422..221

First few terms (base 10): \[[42^*1_7]_n=\{29,211,1485,10403,72829,\ldots\}\]

First few terms (base 7): \[\{\text{41},\text{421},\text{4221},\text{42221},\text{422221},\ldots\}\]

General Formula:\[[42^*1_7]_n={91\cdot7^{n}-4\over3}\]

Equivalent Patterns: (none)

Table

No table data.