Ny. Zhang et Ks. Williams, VALUES OF THE RIEMANN ZETA-FUNCTION AND INTEGRALS INVOLVING LOG (2 SINH THETA 2) AND LOG (2 SIN THETA/2)/, Pacific journal of mathematics, 168(2), 1995, pp. 271-289
Integrals involving the functions log (2 sinh(theta/2)) and log (2 sin
(theta/2)) are studied, particularly their relationship to the values
of the Riemann zeta function at integral arguments. For example genera
l formulae are proved which contain the known results integral(0)(pi/3
) log(2) (2 sin(theta/2)) d theta = 7 pi(3)/108, integral(0)(pi/3) the
ta log(2) (2 sin(theta/2)) d theta = 17 pi(4)/6480, integral(0)(pi/3)
(log(4)(2 sin(theta/2)) - 3/2 theta(2)(2 sin (theta/2))) d theta = 253
pi(5)/3240, integral 0 pi/3 (theta log(4)(2 sin (theta/2) - theta(3)/
2 log(2 sin (theta 2))) d theta = 313 pi(6)/408240, as special cases.