87774: Quasi Repdigit 877..774

First few terms (base 10): \[[87^*4_9]_n=\{76,715,6466,58225,524056,\ldots\}\]

First few terms (base 9): \[\{\text{84},\text{874},\text{8774},\text{87774},\text{877774},\ldots\}\]

General Formula:\[[87^*4_9]_n={639\cdot9^{n}-31\over8}\]

Equivalent Patterns: (none)

Table

No table data.