( 548 ) 



rtj«+i a," a,"-' . . . rt„' rt„-i-i ƒ„+! = (— 1)'' 



.^, y.. 



^9, ...?.e, 

 ö„ . . . C, 6, 



/.„ — 2 '^H— 2 ';i — 2 ^n — 2 -..00 



;i„_, Kn-\ ... 



M W — 1 



In this equation h stands for — 1 if m is even and for — - — 



when n is odd. If now we replace np by 2 (r -|- p) = 2A^ we 

 obtain the following results. Firstly 





= (-1)' 



A„_2 '«„_2 «n — 2 ... 

 A„_l X„_l ... 



if 11 is an even number, and secondly 



22»+l ?,^. + W,^« + l . . . t^, + l bn + S . . . h„'bn + \fn + \ 



{I) 



• {li) 



