88788: Near Repdigit Palindrome 88..88788..88

First few terms (base 10): \[[8^*78^*_9]_n=\{7,719,58967,4782239,387413927,\ldots\}\]

First few terms (base 9): \[\{\text{7},\text{878},\text{88788},\text{8887888},\text{888878888},\ldots\}\]

General Formula:\[[8^*78^*_9]_n=9\cdot9^{2n}-9^{n}-1\]

Equivalent Patterns: (none)

Table

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