11711: Near Repdigit Palindrome 11..11711..11

First few terms (base 10): \[[1^*71^*_8]_n=\{7,121,5065,302665,19198537,\ldots\}\]

First few terms (base 8): \[\{\text{7},\text{171},\text{11711},\text{1117111},\text{111171111},\ldots\}\]

General Formula:\[[1^*71^*_8]_n={8\cdot8^{2n}+42\cdot8^{n}-1\over7}\]

Equivalent Patterns: (none)

Table

No table data.