10004: Quasi Repdigit 100..004

First few terms (base 10): \[[10^*4_9]_n=\{13,85,733,6565,59053,\ldots\}\]

First few terms (base 9): \[\{\text{14},\text{104},\text{1004},\text{10004},\text{100004},\ldots\}\]

General Formula:\[[10^*4_9]_n=9\cdot9^{n}+4\]

Equivalent Patterns: \[[20^*8_9]_n=2\cdot[10^*4_9]_n\]

Table

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