15552: Quasi Repdigit 155..552
First few terms (base 10): \[[15^*2_7]_n=\{9,86,625,4398,30809,\ldots\}\]
First few terms (base 7): \[\{\text{12},\text{152},\text{1552},\text{15552},\text{155552},\ldots\}\]
General Formula:\[[15^*2_7]_n={77\cdot7^{n}-23\over6}\]
Equivalent Patterns: (none)
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