Ol'USCULl 4^3 



0, 15, SI , 120, 210 etc. 



1 , 21 , G6, 13G, Sal cic. 



3, 28, 78, 153, 253 etc 



6, 36, 91 , 171 , 276 etc. 



10, 45, 105 , 190 , 300 etc, 



Haiura seiicrum termini generalcs erunt 



25 t,r -\~5ni 

 pnniae .^ ■ 



25»r-4-1j/.i-f-2 

 secundae 



teriiae 



quarlae 



quintae — r- 



Unaquaeque harum foimularum ponatur 



4m'-H(4/+ 2)m+ /i'-|-/ 

 — 2" " 



4mM-(45 + 2)n.-Hg=+"g 



, 9m'+.(6/-t-3)m-4-r4-Z 

 2 



Methodo snperiori adhibila, determinalis, pro quavis for- 

 mula, numeris /, h, A, g, I, invenieruus. 



25 fft'-f- 5 m __ 4 m' 4- 2 TO 4m'+2 (/» 4 ni'-4- 2 ni 

 2 2 ' 2 ' 2 



"^ . 4 f?i" 4- 2 m . 9 ;;i' — 3 to 



2 2 



25 m- 4. 1 5 TO 4- 2 4 to" 4- 2 TO 4 771' 4- 2 to 4 to' 4. 2 to 



