44474: Near Repdigit 44..4474

First few terms (base 10): \[[4^*74_9]_n=\{67,391,3307,29551,265747,\ldots\}\]

First few terms (base 9): \[\{\text{74},\text{474},\text{4474},\text{44474},\text{444474},\ldots\}\]

General Formula:\[[4^*74_9]_n={81\cdot9^{n}+53\over2}\]

Equivalent Patterns: (none)

Table

No table data.