( ^76 ) 
A B C D E F 
lyx^ -j- 41 Scc. in qua 
C nz xBx + I Axx 
D— xCx-j“iBxx 
E — 2 Dx-j- I Cx X 
F — 2Ex+iDxx Scc. 
^lantitates autem Numerales 2 -f i fmul fimptas 
ftibque proprtis fignis mmexas appellare licet Indi- 
cem Relationis. 
Eodemmodo conftitui poffunt feries alia in quibus 
ajfumptis ad libitum Terminis tribus primis^ Termi- 
nus quilibet fubjeqtmis ad tres proxime pracedentes 
habeat rationes datas ; hujus generis efi fubjel^a Se- 
ries. 
A B C D E F 
i~\~zx-{- 3xx-{~iox^-}- 34X^ ()j x^ Scc. in qua 
D= 3Cx — 2 Bxx+5'Ax’ 
E = 3 Dx — 2CXX+5BX* 
F = 3Ex-^2Dxx + 5'Cx^ &c. 
^Quantitates autem Numerales 3 — 2. ~f- 5' fmul 
Jimpta Jkbque propriis fignis connexa.^ componunt 
Indicem Relationis. 
Sunt alia feries in quibus Relatio fit ad quatuor^ 
^el ad quinque^i ^el ad fex Terminos pracedentes.^ 
^c. 
Series autem omnes hujus generis recurrentes appel- 
lare licebit propter Relationem Terminorum perpetuo 
recurrentem. 
PROBLEMA II. 
In feriehus recurrentibus., ex datis Terminis duo- 
bus primis., fi relatio fiat ad duos pracedentes ; 'vel 
datis 
