55553: Near Repdigit 55..553

First few terms (base 10): \[[5^*3_7]_n=\{3,38,283,1998,14003,\ldots\}\]

First few terms (base 7): \[\{\text{3},\text{53},\text{553},\text{5553},\text{55553},\ldots\}\]

General Formula:\[[5^*3_7]_n={35\cdot7^{n}-17\over6}\]

Equivalent Patterns: (none)

Table

No table data.