6c 



n : 3 = c (n :.i: -f-n : i) — 2 . (i -4- o} — 2 



n:4 -3(n;3+n:2)r:::;i.(2-t- l) .- Q 



ll:5=:4(n:4-^n:3)r:-4.(9-+-2j -44 



IT- : 6 = 5 (n: 5 +n: 4) ^ 5 . (44 4- 9) — 260 



11: 7:^6(n:6 + n:5) = 6.(265 +44) = 185.4 



n: 8=:7(n:7-hn:6)=7.(i854 + c65) = 14883 



n:9 — 8(n:8+n:7)=8.(i4833-f- l854) =: 133496 



n:io — 9 (n: 9 4-n: 8)= 9. (133496+14833) = 1334961. 



IX. Oïdinemus hos nameios II : n., ad suos indices 

 }i relatos, in scqiientem seriem : 



n 1, 2, 3, 4, 5, 6, 7, 8, 9, 



n.n o, 1, 2, 9, 44, 265, 1854, 14833, 133496. 

 Qiiodsi jam hanc seriem atlentius considercmus , egre- 

 giam relationem deprehendemiis, qua qiiilibct nnmerus ad 

 praecedentem refeitiir , qiiemadmodum sequens tabella dé- 

 clarât : 



î2 :=: 3 . 1 — 1 

 9 nr 4 . 2 +1 

 44 m 5 . 9 — 1 

 265 3= 6 . 44+ 1 

 l854:zi 7 . 265 — i 

 14833 r:r 8 . l854 +1 

 133496 ziz g . 14833 — i 



elr. 



