33313: Near Repdigit 33..3313

First few terms (base 10): \[[3^*13_4]_n=\{7,55,247,1015,4087,\ldots\}\]

First few terms (base 4): \[\{\text{13},\text{313},\text{3313},\text{33313},\text{333313},\ldots\}\]

General Formula:\[[3^*13_4]_n=16\cdot4^{n}-9\]

Equivalent Patterns: (none)

Table

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