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kevin!
Lv 5
Please fill in the missing parts of the sequence?
Please fill in the blanks:
Find the terms of the sequence that goes in the blanks:
___, 4, 6, 15, 105, 5460, ___
2 Answers
Relevance
- Anonymous1 decade agoFavorite Answer
(1+√33)/2 and 14903070
the equation is
t(n) = t(n-1) [t(n-1)-1]/2
h3h3h3h3............
^^!!!!!!!!!!!!!!!!!!
- 1 decade ago
should be 3.372,4,6,15,105,5460,14903070
the ratio of the progression should be x * (x-1)/2
4* ( (4-1)/2 )=6
6* ( (6-1)/2 )=15
15* ( (15-1)/2 )=105
......
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