Recently, I read an article about “almost-identities”. It said, that for every “almost-identity” we have to decide whether it is a coincidence or not. By myself, I discovered that
∞∑k=0πk2Γ(k2+1)=eπ(1+erf(√π))≈45.9993260894...
which is surprisingly close to 46. So my question is: is this a mere coincidence or can it be “proven” in some sense?
Wednesday, 5 October 2016
sequences and series - Is the “almost-identity” sumik=0nftyleft[pifrack2big/Gammaleft(frack2+1right)right]approx46 significant or a coincidence?
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