11131: Near Repdigit 11..1131

First few terms (base 10): \[[1^*31_8]_n=\{25,89,601,4697,37465,\ldots\}\]

First few terms (base 8): \[\{\text{31},\text{131},\text{1131},\text{11131},\text{111131},\ldots\}\]

General Formula:\[[1^*31_8]_n={64\cdot8^{n}+111\over7}\]

Equivalent Patterns: \[[2^*62_8]_n=2\cdot[1^*31_8]_n\]

Table

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