41111: Near Repdigit 411..11

First few terms (base 10): \[[41^*_5]_n=\{4,21,106,531,2656,\ldots\}\]

First few terms (base 5): \[\{\text{4},\text{41},\text{411},\text{4111},\text{41111},\ldots\}\]

General Formula:\[[41^*_5]_n={17\cdot5^{n}-1\over4}\]

Equivalent Patterns: (none)

Table

No table data.