42223: Quasi Repdigit 422..223

First few terms (base 10): \[[42^*3_{10}]_n=\{43,423,4223,42223,422223,\ldots\}\]

General Formula:\[[42^*3_{10}]_n={380\cdot10^{n}+7\over9}\]

Equivalent Patterns: \[[84^*6_{10}]_n=2\cdot[42^*3_{10}]_n\] \[[21^*5_{10}]_n=5\cdot[42^*3_{10}]_{n-1}\]

See Also: Factorization of 422..223 on stdkmd.net

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