74777: Near Repdigit 7477..77

First few terms (base 10): \[[747^*_8]_n=\{60,487,3903,31231,249855,\ldots\}\]

First few terms (base 8): \[\{\text{74},\text{747},\text{7477},\text{74777},\text{747777},\ldots\}\]

General Formula:\[[747^*_8]_n=61\cdot8^{n}-1\]

Equivalent Patterns: (none)

Table

No table data.