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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 v_n(x), used to approximate x->sin(Pi*x)/Pi.
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%I #8 Dec 20 2014 17:10:43

%S 1,1,1,1,7,7,1,87,29,87,1,2047,2047,2047,2047,1,15731,78655,15731,

%T 15731,78655,1,4439935,887987,4439935,887987,4439935,4439935,1,

%U 49239241,49239241,344674687,49239241,49239241,49239241,344674687,1,35162451967

%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 v_n(x), used to approximate x->sin(Pi*x)/Pi.

%H Alois P. Heinz, <a href="/A144860/b144860.txt">Rows n = 0..99, flattened</a>

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

%Y See A144859 for more information on T(n,k). Column k=0 gives: A000012.

%K frac,nonn,tabl

%O 0,5

%A _Alois P. Heinz_, Sep 23 2008