33733: Near Repdigit Palindrome 33..33733..33

First few terms (base 10): \[[3^*73^*_{10}]_n=\{7,373,33733,3337333,333373333,\ldots\}\]

General Formula:\[[3^*73^*_{10}]_n={10\cdot10^{2n}+12\cdot10^{n}-1\over3}\]

Equivalent Patterns: (none)

See Also: Factorization of 33..33733..33 on stdkmd.net

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