55515: Near Repdigit 55..5515

First few terms (base 10): \[[5^*15_8]_n=\{13,333,2893,23373,187213,\ldots\}\]

First few terms (base 8): \[\{\text{15},\text{515},\text{5515},\text{55515},\text{555515},\ldots\}\]

General Formula:\[[5^*15_8]_n={320\cdot8^{n}-229\over7}\]

Equivalent Patterns: (none)

Table

No table data.