28 



A£ 2 (n._n+2) = 

 KilnUn-%) = 



K% 1 (n-2.-n+l)= 

 jKfr(n— 2.— n_l)= 



K?. a (n—l.—n+2)=- 

 Klln-l.-n) =- 

 Kl£n—\.—n-2) = - 



i^ 8 (ft—ft+3) = 



KUn.-n-Y) = 

 KZ*(n.-n-3) = 



Karl Bohijn, 



in . m -f- 1 



m 2n 4- m 



t ' ~ ~r~ 



2 n -f m . 2 ft 4. m 4- 1 



~TT2 



2ft_. 2n — 1 . 2w - 2 

 1 . 2 73~ 



2ft . 2ft — 1 ?ft 



1 . 2 T 



2 ft . 2 n — 1 2n -\- vi 



~~ 1 . 2~ 



2 n wi . m 4- 1 



T ' 1 . 2 



2ft m 2n 4 m 



t " x r _ 



2ft 2ft 4- in . 2n 4- m 4- 1 



T " " 1.2" 



m . in 4- 1 . m 4- 2 



1.2.3" 

 m . m 4. 1 2 n 4- m 



1.2 ' l" 

 m 2ft 4- m .2n 4- 4- 1 



T * ~ 1 . 2 



2 ft 4- m . 2 ft 4- m 4- 1 . 2 11 -f m 4- 2 

 "1.2.3 



2 ft. 2ft- 1 . 2ft — 2.2ft — 3 . 

 1.2.3.4 



2ft. 2ft— 1.2ft - 2 7ft 



ir^(ft_ 3. -w— 1) 



1.2.3 1 



2ft. 2ft— 1.2ft — 2 2 ft 4- m 



