40007: Quasi Repdigit 400..007

First few terms (base 10): \[[40^*7_9]_n=\{43,331,2923,26251,236203,\ldots\}\]

First few terms (base 9): \[\{\text{47},\text{407},\text{4007},\text{40007},\text{400007},\ldots\}\]

General Formula:\[[40^*7_9]_n=36\cdot9^{n}+7\]

Equivalent Patterns: (none)

Table

No table data.