15553: Quasi Repdigit 155..553

First few terms (base 10): \[[15^*3_{10}]_n=\{13,153,1553,15553,155553,\ldots\}\]

General Formula:\[[15^*3_{10}]_n={140\cdot10^{n}-23\over9}\]

Equivalent Patterns: (none)

See Also: Factorization of 155..553 on stdkmd.net

Table

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