42221: Quasi Repdigit 422..221

First few terms (base 10): \[[42^*1_{10}]_n=\{41,421,4221,42221,422221,\ldots\}\]

General Formula:\[[42^*1_{10}]_n={380\cdot10^{n}-11\over9}\]

Equivalent Patterns: \[[84^*2_{10}]_n=2\cdot[42^*1_{10}]_n\]

See Also: Factorization of 422..221 on stdkmd.net

Table

No table data.