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 A163086 Product of first n terms of A163085. 2
 1, 1, 2, 24, 1728, 3732480, 161243136000, 975198486528000000, 412860031256494080000000000, 110116706384632080236544000000000000000, 7401233839469056679744633202278400000000000000000000 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS FORMULA a(n) = product_{i=0..n}  A056040(i+1)^(n-i). - Peter Luschny, Sep 18 2012 MAPLE a := proc(n) local i; mul(A163085(i), i=0..n) end; MATHEMATICA b[0] = 1; b[n_] := b[n] = b[n-1] n! / Floor[n/2]!^2; a[n_] := Product[b[k], {k, 0, n}]; Table[a[n], {n, 0, 10}] (* Jean-François Alcover, Jul 11 2019 *) PROG (Sage) def A163086(n):     swing = lambda n: factorial(n)/factorial(n//2)^2     return mul(swing(i+1)^(n-i) for i in (0..n)) [A163086(i) for i in (0..10)] # Peter Luschny, Sep 18 2012 CROSSREFS Cf. A056040, A163085, A055462, A000178. Sequence in context: A111427 A081955 A292797 * A280922 A296589 A053995 Adjacent sequences:  A163083 A163084 A163085 * A163087 A163088 A163089 KEYWORD nonn AUTHOR Peter Luschny, Jul 21 2009 STATUS approved

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Last modified October 19 15:50 EDT 2019. Contains 328223 sequences. (Running on oeis4.)