11115: Near Repdigit 11..115

First few terms (base 10): \[[1^*5_8]_n=\{5,13,77,589,4685,\ldots\}\]

First few terms (base 8): \[\{\text{5},\text{15},\text{115},\text{1115},\text{11115},\ldots\}\]

General Formula:\[[1^*5_8]_n={8\cdot8^{n}+27\over7}\]

Equivalent Patterns: \[[2^*32_8]_n=2\cdot[1^*5_8]_{n+1}\] \[[4^*64_8]_n=4\cdot[1^*5_8]_{n+1}\]

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