77377: Near Repdigit Palindrome 77..77377..77

First few terms (base 10): \[[7^*37^*_9]_n=\{3,601,51343,4182181,338966683,\ldots\}\]

First few terms (base 9): \[\{\text{3},\text{737},\text{77377},\text{7773777},\text{777737777},\ldots\}\]

General Formula:\[[7^*37^*_9]_n={63\cdot9^{2n}-32\cdot9^{n}-7\over8}\]

Equivalent Patterns: (none)

Table

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