144 



O. I. Broch 



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2 1,2.3 »..(n-L 5/ -i' 



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 ,(n-f3) 



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■r 2 ^*" ^ 1,2,3. ,,(nJ-3^^Ji ^ 



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(366) 



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crm' 



-^'^ ]•«<„, S[7-dr"<P'n(r") . '+(-'^" 0/rî)" U»"+f»"+' -lj 5 



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n— 1 n+3 n+3 j 



l + (-ll ,_.n-l k" r" ^l( 



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n— 1 



n-i-I n-l-1 



