2023/07/06 by Sun, Zhi-Wei · 2 citations
#05A19 #11A07 #11B65 #11B68 #33B15 #Combinatorics (math.CO) #FOS: Mathematics #Number Theory (math.NT)
paper · doi:10.48550/arxiv.2307.03086
In this paper, we evaluate some series of the form ∑k=1^∞\fracak2+bk+ck(3k-1)(3k-2)mk\binom4kk. For example, we prove that ∑k=1^∞\frac(5k2-4k+1)8kk(3k-1)(3k-2)\binom4kk=\frac32π and ∑k=1^∞\frac415k2-343k+62k(3k-1)(3k-2)(-8)k\binom4kk=-3log2. We also pose many new conjectural series identities involving binomial coefficients; for example, we conjecture that ∑k=0^∞\frac\binom2kk34096k(9(42k+5)∑_0≤ j