88188: Near Repdigit Palindrome 88..88188..88

First few terms (base 10): \[[8^*18^*_9]_n=\{1,665,58481,4777865,387374561,\ldots\}\]

First few terms (base 9): \[\{\text{1},\text{818},\text{88188},\text{8881888},\text{888818888},\ldots\}\]

General Formula:\[[8^*18^*_9]_n=9\cdot9^{2n}-7\cdot9^{n}-1\]

Equivalent Patterns: (none)

Table

No table data.