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A171878 a(n) = a(n-1) + a(n-2)*a(n-3) + a(n-4)^a(n-5) 0

%I

%S 0,0,0,0,1,2,3,6,13,33,120,765,4831534,55040353993453427047,

%T 410186270246002225336426103593500672000000000000055040353997149550557

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

%C First 5 terms are {0,0,0,0,1}; 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 May 6 15:28 EDT 2021. Contains 343586 sequences. (Running on oeis4.)