11117: Near Repdigit 11..117

First few terms (base 10): \[[1^*7_8]_n=\{7,15,79,591,4687,\ldots\}\]

First few terms (base 8): \[\{\text{7},\text{17},\text{117},\text{1117},\text{11117},\ldots\}\]

General Formula:\[[1^*7_8]_n={8\cdot8^{n}+41\over7}\]

Equivalent Patterns: \[[4^*74_8]_n=4\cdot[1^*7_8]_{n+1}\]

Table

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