24441: Quasi Repdigit 244..441

First few terms (base 10): \[[24^*1_9]_n=\{19,199,1819,16399,147619,\ldots\}\]

First few terms (base 9): \[\{\text{21},\text{241},\text{2441},\text{24441},\text{244441},\ldots\}\]

General Formula:\[[24^*1_9]_n={45\cdot9^{n}-7\over2}\]

Equivalent Patterns: \[[48^*2_9]_n=2\cdot[24^*1_9]_n\]

Table

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