Corollariiim 2. 



§. 25. Quodfi harum aequalitatum blnas fe infe' 

 quentes adiamus, prodibunt iftae nouaa aequationes: 



if] + 2 [^^ + l^] == K^] -+- 1^1 r^ ['^] 



[^] + - [^] + [ffcll -= [|S]i+ [^l = [f±^] 



[,-i-j + - [jfj + [,ji-J ^-^m^ -^ ^^] ^ K-'] 



r,-:^] + - [,-^7] + [,-ii] = [,'^-t'] +- cj-^:j = [,^3 

 [,-i.] + ^ [,-^] + [,-^.1 - [j^:] •+- [,^:] = [j-^:] 



4 + 9-1 ~ -^ 1-5+7-' » l-5_^,J l-^-+.7-' ' 4-f_«-l LJh-sJ 



etc. etc. 



Corollarjum 3. 



§. 26. Quodfi denuo binas harum aequalitatum 

 fe infequentes addamus, reperiemus primo: 



[-f] + 3 [^] + 3 [j-W + trfr.] = [?-$-;] + [f:^--] = [tj^]. 



iSimili modo prodibunt fequentes aequationes: 



[,-i-] + 3 [rl-J + 3 [,-i-J + [r-t-] = [J-;?;^ • 



Eodemque modo porro: 



[,-i-;] + 3 [4-.] -+ 3 [J-] -+ [,-i-,] = [J-ii] ; 

 parique modo vlrerius progredi Jicebit, quousque libueritj 

 arque hine fequens problema refoluere poterimus. 



Problema. 



§. 27, Sumtis pvop et q numeris quibuscunque integris 



pofitiuis, a praeterea littera n etiam huiusmodi numerum 



M s quem- 



