where
Ω ( a , i ) = 1 i 4 m − i ( 1 − 1 a ) i ∑ k = 0 i − 1 ( 1 − 1 a ) k k ! ( 1 2 ) k
\Omega (a, i) = \frac{1}{i 4^{m-i} (1 - \frac{1}{a})^i} \sum_{k=0}^{i-1} \frac{(1 - \frac{1}{a})^k}{k!} \left(\frac{1}{2}\right)_k
Ω ( a , i ) = i 4 m − i ( 1 − a 1 ) i 1 k = 0 ∑ i − 1 k ! ( 1 − a 1 ) k ( 2 1 ) k
we came to know that
I = ( − 1 ) m m ! ∂ m ∂ a m ( tanh − 1 ( 1 a ) a )
I = \frac{(-1)^m}{m!} \frac{\partial^m}{\partial a^m} \left( \frac{\tanh^{-1}\left(\frac{1}{\sqrt{a}}\right)}{\sqrt{a}} \right)
I = m ! ( − 1 ) m ∂ a m ∂ m a tanh − 1 ( a 1 )
∴
I = ( − 1 ) m m ! ( ( − 1 ) m m ! 2 a m + 1 ( ∑ i = 1 m ( 2 m − 2 i m − i ) Ω ( a , i ) ) + ( − 1 ) m ( 2 m ) ! 2 2 m ( m ! ) a m + 1 2 tanh − 1 ( 1 a ) ) = 1 2 a m + 1 ( ∑ i = 1 m ( 2 m − 2 i m − i ) Ω ( a , i ) ) + ( 2 m ) ! 2 2 m ( m ! ) 2 a m + 1 2 tanh − 1 ( 1 a )
\begin{align*}
I &= \frac{(-1)^m}{m!} \left( \frac{(-1)^m m!}{2a^{m+1}} \left( \sum_{i=1}^{m} \binom{2m-2i}{m-i} \Omega(a,i) \right) + \frac{(-1)^m (2m)!}{2^{2m}(m!)a^{m+\frac{1}{2}}} \tanh^{-1}\left(\frac{1}{\sqrt{a}}\right) \right) \\
&= \frac{1}{2a^{m+1}} \left( \sum_{i=1}^{m} \binom{2m-2i}{m-i} \Omega(a,i) \right) + \frac{(2m)!}{2^{2m}(m!)^2 a^{m+\frac{1}{2}}} \tanh^{-1}\left(\frac{1}{\sqrt{a}}\right)
\end{align*}
I = m ! ( − 1 ) m ( 2 a m + 1 ( − 1 ) m m ! ( i = 1 ∑ m ( m − i 2 m − 2 i ) Ω ( a , i ) ) + 2 2 m ( m !) a m + 2 1 ( − 1 ) m ( 2 m )! tanh − 1 ( a 1 ) ) = 2 a m + 1 1 ( i = 1 ∑ m ( m − i 2 m − 2 i ) Ω ( a , i ) ) + 2 2 m ( m ! ) 2 a m + 2 1 ( 2 m )! tanh − 1 ( a 1 )
∴
H ( ( 1 a ) r ( m + 1 ) ; 2 r ( m + 1 ) ; 1 ) = a m + 1 I
H\left(\left(\frac{1}{a}\right)_{r(m+1)}; 2_{r(m+1)}; 1\right) = a^{m+1} I
H ( ( a 1 ) r ( m + 1 ) ; 2 r ( m + 1 ) ; 1 ) = a m + 1 I
and finally we'll get the result
H ( ( 1 a ) r ( m + 1 ) ; 2 r ( m + 1 ) ; 1 ) = 1 2 ( ∑ i = 1 m ( 2 m − 2 i m − i ) Ω ( a , i ) ) + ( 2 m ) ! 2 2 m ( m ! ) 2 a m + 1 2 tanh − 1 ( 1 a ) (7)
\mathcal{H}\left(\left(\frac{1}{a}\right)_{r(m+1)} ; 2_{r(m+1)} ; 1\right) = \frac{1}{2} \left( \sum_{i=1}^{m} \binom{2m-2i}{m-i} \Omega(a,i) \right) + \frac{(2m)!}{2^{2m}(m!)^2 a^{m+\frac{1}{2}}} \tanh^{-1}\left(\frac{1}{\sqrt{a}}\right) \tag{7}
H ( ( a 1 ) r ( m + 1 ) ; 2 r ( m + 1 ) ; 1 ) = 2 1 ( i = 1 ∑ m ( m − i 2 m − 2 i ) Ω ( a , i ) ) + 2 2 m ( m ! ) 2 a m + 2 1 ( 2 m )! tanh − 1 ( a 1 ) ( 7 )
□
Example 1. let us plug the value's $a = 3$ and $m = 4$ in Eq(7) i.e $\mathcal{H}\left(\left(\frac{1}{3}\right){r(5)} ; 2 {r(5)} ; 1\right)$ where 3 and 2 are repeated 5 times. Therefore from theorem 1 we'll get
H ( ( 1 3 ) r ( 5 ) ; 2 r ( 5 ) ; 1 ) = 1 2 ( ∑ i = 1 4 ( 8 − 2 i 4 − i ) Ω ( 3 , i ) ) + ( 8 ) ! 3 2 8 ( 4 ! ) 2 tanh − 1 ( 1 3 ) = 249 128 + 35 3 128 tanh − 1 ( 1 3 )
\begin{align*}
\mathcal{H}\left(\left(\frac{1}{3}\right)_{r(5)} ; 2_{r(5)} ; 1\right) &= \frac{1}{2} \left( \sum_{i=1}^{4} \binom{8-2i}{4-i} \Omega(3,i) \right) + \frac{(8)!\sqrt{3}}{2^8 (4!)^2} \tanh^{-1}\left(\frac{1}{\sqrt{3}}\right) \\
&= \frac{249}{128} + \frac{35\sqrt{3}}{128} \tanh^{-1}\left(\frac{1}{\sqrt{3}}\right)
\end{align*}
H ( ( 3 1 ) r ( 5 ) ; 2 r ( 5 ) ; 1 ) = 2 1 ( i = 1 ∑ 4 ( 4 − i 8 − 2 i ) Ω ( 3 , i ) ) + 2 8 ( 4 ! ) 2 ( 8 )! 3 tanh − 1 ( 3 1 ) = 128 249 + 128 35 3 tanh − 1 ( 3 1 )