204 



R. FUJISAWA. 



If — ^^— lie odd, so that -^^ is even, then the term containing 



the lowest power of ^ 



»1+2 Ji-2 „, n-2 9 „IP 



in R ^, , is 2^'«+2r,r-" + ^ 



'7)1+2 '/«-2-1 



Equating the coefficients of the lowest power of ^ (that is ç"'-"-) on 

 the two sides of equation (119), we get 



jt+2 9,, ., „ (n-l)(ra+5) ai — ^ 



r, ^ 2^^'""^'"-^=2 ^ , ^ odd, 

 or, writing // instead of // + 2, 



» (»-3)()t + 3) g 9/« 1\ 7? — 1 



/^ _2 — 4 _2?"~'^ = 2^ -^ - 



even. 



Again, when — ^ is even, so that — ^=^ is odd, the term con- 

 taining the highest power of ç 



H +2 H-2 n— 2 ., , „ 



in i?„ E , is 2?'"+2ril"- + "--, 



'ln + 2 '/n-2-1 ^ ' 



»1—2 »1+2 11 + 2 ., 



-4(l+ç^)[^A 1' „ _22^,,. + ,W-. + 4^ 

 </n '/»I ~ i 



