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THE 7-REGULAR AND 13-REGULAR PARTITION FUNCTIONS MODULO 3
Published online by Cambridge University Press: 11 January 2016
Abstract
Let $b_{\ell }(n)$ denote the number of $\ell$-regular partitions of $n$. In this paper we establish a formula for $b_{13}(3n+1)$ modulo $3$ and use this to find exact criteria for the $3$-divisibility of $b_{13}(3n+1)$ and $b_{13}(3n)$. We also give analogous criteria for $b_{7}(3n)$ and $b_{7}(3n+2)$.
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- © 2016 Australian Mathematical Publishing Association Inc.
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