Tanya B.

asked • 11/05/15

sequence 4,6,9,6,14,6,?

What is the next numeral in this sequence?

1 Expert Answer

By:

Steve S.

or for more analytical types f(n) = f(n-1) + [f(n-2) - f(n-1)] + [f(n-2) - f(n-3)] + [f(n-3) - f(n-4)] In english, if you look at the difference of the numbers: 2, 3, -3, 8, -8... The next difference is the opposite of the n-1 difference plus the n-2 difference plus the n-3 difference. Interestingly, this function simplifies to: f(n) = 2[f(n-2)] - f(n-4)
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12/17/19

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