|
%I #6 Jun 22 2022 19:58:05
%S 1,1,1,2,3,6,12,27,63,155,402,1087,3068,8996,27340,85905,278485,
%T 929713,3191201,11245603,40631628,150342633,569071745,2201355134,
%U 8694775795,35035655103,143916920872,602218550964,2565370007349,11118142868084,48994958103507
%N Nearest integer to ratio of volume of n-dimensional cube of side 2 to volume of n-dimensional ball of radius 1.
%D J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 9.
%F a(n) = 2^n*GAMMA(n/2+1)/Pi^(n/2).
%Y Cf. A072168, A072345, A072346.
%K nonn
%O 0,4
%A _N. J. A. Sloane_, Sep 06 2003
|
