26665: Quasi Repdigit 266..665

First few terms (base 10): \[[26^*5_7]_n=\{19,145,1027,7201,50419,\ldots\}\]

First few terms (base 7): \[\{\text{25},\text{265},\text{2665},\text{26665},\text{266665},\ldots\}\]

General Formula:\[[26^*5_7]_n=21\cdot7^{n}-2\]

Equivalent Patterns: \[[56^*3_7]_n=2\cdot[26^*5_7]_n\]

Table

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