login

Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.

Row sums of triangle A164659 (denominators of coefficients from int(T(n,x),x), with T(n,x) Chebyshev polynomials of the first kind).
2

%I #8 Mar 06 2021 01:32:13

%S 1,3,5,5,11,9,17,11,25,15,31,21,35,25,49,23,55,29,53,39,71,41,77,43,

%T 79,47,97,53,95,73,89,63,115,51,165,73,131,77,135,71,141,103,125,105,

%U 163,89,169,81,161,101,193,109,181,119,197,121,261,111,203,139,179,143,239,95

%N Row sums of triangle A164659 (denominators of coefficients from int(T(n,x),x), with T(n,x) Chebyshev polynomials of the first kind).

%C The row sums of the rational triangle A164658/A164659 give A164660/A164661.

%H <a href="/index/Ch#Cheby">Index entries for sequences related to Chebyshev polynomials.</a>

%F a(n) = Sum_{m=1..n+1} A164659(n,m), n>=0.

%Y Row sums of numerator triangle A164658 gives A164662.

%K nonn,easy

%O 0,2

%A _Wolfdieter Lang_, Oct 16 2009