General term of a sequence?
These are the first four terms of a sequence:
1, 10, 28, 82
Find a general nth term that fits the sequence.
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These are the first four terms of a sequence:
1, 10, 28, 82
Find a general nth term that fits the sequence.
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Verified answer
1, 10, 28, 82, ...
an = -2(13n - 11)/(n - 5)
3^n+1 Except the first term which is 1. Others fit.
10 = 3^2 + 1
28 = 3^3 + 1
82 = 3^4 + 1
10=1+1*9
28=10+1*2*9
82=28+1*2*3*9
a(n+1) = a(n)+9n! with a(1)=1.
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