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A144847 Denominators of triangle T(n,k), n>=0, 0<=k<=n, read by rows: T(n,k) is the coefficient of x^(2k+1) in polynomial u_n(x), used to approximate x->sin(Pi*x)/Pi. 4

%I #8 Dec 20 2014 17:08:09

%S 1,2,2,8,4,8,88,22,88,44,2048,64,1024,256,2048,78656,4916,19664,39328,

%T 78656,39328,4439936,34687,277496,1109984,4439936,1109984,2219968,

%U 344674688,2692771,21542168,43084336,344674688,86168672,172337344

%N Denominators of triangle T(n,k), n>=0, 0<=k<=n, read by rows: T(n,k) is the coefficient of x^(2k+1) in polynomial u_n(x), used to approximate x->sin(Pi*x)/Pi.

%H Alois P. Heinz, <a href="/A144847/b144847.txt">Rows n = 0..99, flattened</a>

%p seq(seq(denom(T(n,k)), k=0..n), n=0..9);

%Y See A144846 for more information on T(n,k).

%K frac,nonn,tabl

%O 0,2

%A _Alois P. Heinz_, Sep 22 2008

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Last modified April 24 11:49 EDT 2024. Contains 371936 sequences. (Running on oeis4.)