71111: Near Repdigit 711..11

First few terms (base 10): \[[71^*_8]_n=\{7,57,457,3657,29257,\ldots\}\]

First few terms (base 8): \[\{\text{7},\text{71},\text{711},\text{7111},\text{71111},\ldots\}\]

General Formula:\[[71^*_8]_n={50\cdot8^{n}-1\over7}\]

Equivalent Patterns: \[[34^*_8]_n=4\cdot[71^*_8]_{n-1}\]

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