38886: Quasi Repdigit 388..886

First few terms (base 10): \[[38^*6_9]_n=\{33,321,2913,26241,236193,\ldots\}\]

First few terms (base 9): \[\{\text{36},\text{386},\text{3886},\text{38886},\text{388886},\ldots\}\]

General Formula:\[[38^*6_9]_n=3\cdot\left(12\cdot9^{n}-1\right)\]

Equivalent Patterns: \[[78^*3_9]_n=2\cdot[38^*6_9]_n\]

Table

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