55455: Near Repdigit Palindrome 55..55455..55

First few terms (base 10): \[[5^*45^*_8]_n=\{4,357,23341,1497453,95865709,\ldots\}\]

First few terms (base 8): \[\{\text{4},\text{545},\text{55455},\text{5554555},\text{555545555},\ldots\}\]

General Formula:\[[5^*45^*_8]_n={40\cdot8^{2n}-7\cdot8^{n}-5\over7}\]

Equivalent Patterns: (none)

Table

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