25222: Near Repdigit 2522..22

First few terms (base 10): \[[252^*_9]_n=\{23,209,1883,16949,152543,\ldots\}\]

First few terms (base 9): \[\{\text{25},\text{252},\text{2522},\text{25222},\text{252222},\ldots\}\]

General Formula:\[[252^*_9]_n={93\cdot9^{n}-1\over4}\]

Equivalent Patterns: \[[76^*_9]_n=3\cdot[252^*_9]_{n-1}\]

Table

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