11101: Near Repdigit 11..1101

First few terms (base 10): \[[1^*01_9]_n=\{1,82,811,7372,66421,\ldots\}\]

First few terms (base 9): \[\{\text{1},\text{101},\text{1101},\text{11101},\text{111101},\ldots\}\]

General Formula:\[[1^*01_9]_n={81\cdot9^{n}-73\over8}\]

Equivalent Patterns: \[[2^*02_9]_n=2\cdot[1^*01_9]_n\] \[[4^*04_9]_n=4\cdot[1^*01_9]_n\] \[[8^*08_9]_n=8\cdot[1^*01_9]_n\] \[[5^*05_9]_n=5\cdot[1^*01_9]_n\] \[[7^*07_9]_n=7\cdot[1^*01_9]_n\] \[[3^*03_9]_n=3\cdot[1^*01_9]_n\] \[[6^*06_9]_n=6\cdot[1^*01_9]_n\]

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