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OEIS A229580 mini challenge (RPL)
05-01-2018, 11:56 AM
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Joe Horn Offline
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RE: OEIS A229580 mini challenge (RPL)
(05-01-2018 11:51 AM)Gerald H Wrote:  For n > 2 on
a(n) = 4*(a(n-1)) + 4^(n-1)

SPOILER ALERT. A non-recursive, direct function of n exists. Examining the sequence's prime factors reveals it.
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RE: OEIS A229580 mini challenge (RPL) - Joe Horn - 05-01-2018 11:56 AM



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