31333: Near Repdigit 3133..33

First few terms (base 10): \[[313^*_7]_n=\{22,157,1102,7717,54022,\ldots\}\]

First few terms (base 7): \[\{\text{31},\text{313},\text{3133},\text{31333},\text{313333},\ldots\}\]

General Formula:\[[313^*_7]_n={45\cdot7^{n}-1\over2}\]

Equivalent Patterns: \[[626^*_7]_n=2\cdot[313^*_7]_n\]

Table

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