20001: Quasi Repdigit 200..001

First few terms (base 10): \[[20^*1_8]_n=\{17,129,1025,8193,65537,\ldots\}\]

First few terms (base 8): \[\{\text{21},\text{201},\text{2001},\text{20001},\text{200001},\ldots\}\]

General Formula:\[[20^*1_8]_n=16\cdot8^{n}+1\]

Equivalent Patterns: \[[60^*3_8]_n=3\cdot[20^*1_8]_n\] \[[40^*2_8]_n=2\cdot[20^*1_8]_n\] \[[10^*4_8]_n=4\cdot[20^*1_8]_{n-1}\]

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