S⁡(n)=12⁢n2⁢ln⁡n-14⁢n2+12⁢n⁢ln⁡n+112⁢ln⁡n+C+∑s=2m-1(-B2⁢s)2⁢s⁢(2⁢s-1)⁢(2⁢s-2)⁢1n2⁢s-2+Rm⁡(n),