55655: Near Repdigit Palindrome 55..55655..55
First few terms (base 10): \[[5^*65^*_{10}]_n=\{6,565,55655,5556555,555565555,\ldots\}\]
General Formula:\[[5^*65^*_{10}]_n={50\cdot10^{2n}+9\cdot10^{n}-5\over9}\]
Equivalent Patterns: (none)
See Also: Factorization of 55..55655..55 on stdkmd.net
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