ζ⁡s=1s-1+12+∑k=1ns+2⁢k-22⁢k-1⁢B2⁢k2⁢k-s+2⁢n2⁢n+1⁢∫1∞B~2⁢n+1⁡xxs+2⁢n+1⁢ⅆ⁡x,