66166: Near Repdigit Palindrome 66..66166..66

First few terms (base 10): \[[6^*16^*_{10}]_n=\{1,616,66166,6661666,666616666,\ldots\}\]

General Formula:\[[6^*16^*_{10}]_n={20\cdot10^{2n}-15\cdot10^{n}-2\over3}\]

Equivalent Patterns: (none)

See Also: Factorization of 66..66166..66 on stdkmd.net

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