31333: Near Repdigit 3133..33

First few terms (base 10): \[[313^*_9]_n=\{28,255,2298,20685,186168,\ldots\}\]

First few terms (base 9): \[\{\text{31},\text{313},\text{3133},\text{31333},\text{313333},\ldots\}\]

General Formula:\[[313^*_9]_n={227\cdot9^{n}-3\over8}\]

Equivalent Patterns: \[[626^*_9]_n=2\cdot[313^*_9]_n\]

Table

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