11131: Near Repdigit 11..1131

First few terms (base 10): \[[1^*31_4]_n=\{13,29,93,349,1373,\ldots\}\]

First few terms (base 4): \[\{\text{31},\text{131},\text{1131},\text{11131},\text{111131},\ldots\}\]

General Formula:\[[1^*31_4]_n={16\cdot4^{n}+23\over3}\]

Equivalent Patterns: (none)

Table

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