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 A192668 Floor-Sqrt transform of superfactorials (A000178). 1
 1, 1, 1, 3, 16, 185, 4988, 354134, 71109667, 42836123450, 81600285441318, 515548511098996334, 11283348939893661586501, 890385701589932763452676123, 262895016275494870674135139820802, 300629890583706167610723324054426034948 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,4 LINKS Table of n, a(n) for n=0..15. Mohammad K. Azarian, On the Hyperfactorial Function, Hypertriangular Function, and the Discriminants of Certain Polynomials, International Journal of Pure and Applied Mathematics, Vol. 36, No. 2, 2007, pp. 251-257. Mathematical Reviews, MR2312537. Zentralblatt MATH, Zbl 1133.11012. FORMULA a(n) = floor(sqrt(Product_{k=0..n} k!)). MATHEMATICA Table[Floor[Sqrt[Product[k!, {k, 0, n}]]], {n, 0, 18}] PROG (Maxima) makelist(floor(sqrt(product(k!, k, 0, n))), n, 0, 12); (PARI) a(n) = sqrtint(prod(k=0, n, k!)); \\ Michel Marcus, Apr 08 2021 CROSSREFS Cf. A192660-A192665, A192668-A192685. Sequence in context: A152554 A254430 A180721 * A045990 A007006 A174137 Adjacent sequences: A192665 A192666 A192667 * A192669 A192670 A192671 KEYWORD nonn AUTHOR Emanuele Munarini, Jul 07 2011 EXTENSIONS Definition corrected by Georg Fischer, Apr 08 2021 STATUS approved

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Last modified September 8 22:43 EDT 2024. Contains 375759 sequences. (Running on oeis4.)