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 A171877 a(n) = a(n-1) + a(n-2)*a(n-3) + a(n-4)^a(n-5) 0

%I

%S 0,0,1,1,1,3,5,9,25,73,423,61297,3814697357801,

%T 38288777744833624093154249190851262684887027625

%N a(n) = a(n-1) + a(n-2)*a(n-3) + a(n-4)^a(n-5)

%C First 5 terms are {0,0,1,1,1}; thereafter apply the recurrence. Note that 0^0=1.

%H R. Munafo, <a href="http://mrob.com/pub/math/seq-accelerate.html">Accelerating Sequences</a>

%K nonn

%O 0,6

%A _Robert Munafo_, Jan 21 2010

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Last modified November 28 02:38 EST 2022. Contains 358406 sequences. (Running on oeis4.)