Congruences involving binomial coefficients and Apery-like numbers
Congruences involving binomial coefficients and Apery-like numbers
复制标题
涉及二项式系数和类 Apery 数的同余式
DOI：
10.5486/pmd.2020.8577
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发表时间：
2020-01-01
期刊：
影响因子：
--
通讯作者：
Sun, Zhi-Hong
中科院分区：
文献类型：
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作者：
Sun, Zhi-Hong
For $n=0,1,2,\ldots$ let $W_n=\sum_{k=0}^{[n/3]}\binom{2k}k \binom{3k}k\binom n{3k}(-3)^{n-3k}$, where $[x]$ is the greatest integer not exceeding $x$. Then $\{W_n\}$ is an Apery-like sequence. In this paper we deduce many congruences involving $\{W_n\}$, in particular we determine $\sum_{k=0}^{p-1}\binom{2k}k\frac{W_k}{m^k}\pmod p$ for $m=-640332,-5292,-972,-108,-44,-27,-12,8,54,243$ by using binary quadratic forms, where $p>3$ is a prime. We also prove several congruences for generalized Apery-like numbers, and pose 29 challenging conjectures on congruences involving binomial coefficients and Apery-like numbers.
For $n=0,1,2,\ldots$ let $W_n=\sum_{k=0}^{[n/3]}\binom{2k}k \binom{3k}k\binom n{3k}(-3)^{n-3k}$, where $[x]$ is the greatest integer not exceeding $x$. Then $\{W_n\}$ is an Apery-like sequence. In this paper we deduce many congruences involving $\{W_n\}$, in particular we determine $\sum_{k=0}^{p-1}\binom{2k}k\frac{W_k}{m^k}\pmod p$ for $m=-640332,-5292,-972,-108,-44,-27,-12,8,54,243$ by using binary quadratic forms, where $p>3$ is a prime. We also prove several congruences for generalized Apery-like numbers, and pose 29 challenging conjectures on congruences involving binomial coefficients and Apery-like numbers.