( 562 ) 



therefore 



1,1 1 

 1* 3^ 5^ ^ 



1 1 1 



1».3' ^ 3«.7» ^ 5'. 9» ^ 



1.1 1 



1'.5' ^ 3\7' ~ 5\9' ^ 



1.1 1 



\ h . = 



According to formula (2) we have 

 1 



00 



1 



1 



00 



^t = — ^1^, + -2'6,Aj + 3 

 1 



21, = - 1 (2Ma + ^.') + ^M;„ + 4 



1 



1 

 21, .= - i (26,6, + 26,6, 4- 63') + J6,„6;„ + 6 



From which may be deduced 



1,11 jt' 



1» ^ 2» ^ 3» ~ 6 



1 1 1 



1.2^2.3^3.4^ 



1 1 1 _3 



Ö "^ 2^ ^ 3^5 "^ 4 



111 11 



1.4^2.5^3.6^ 18 



1.5 "^ 2.6 "^ 3?7 "^ 48 



111 _ 137 



r6"^2?7"^3^~^ 3ÖÖ 



J_ 1^ 1 _ 49 



r7"^2^"^8^^*"~r2Ö 



