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A171877 a(n) = a(n-1) + a(n-2)*a(n-3) + a(n-4)^a(n-5) 0
0, 0, 1, 1, 1, 3, 5, 9, 25, 73, 423, 61297, 3814697357801, 38288777744833624093154249190851262684887027625 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,6

COMMENTS

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

LINKS

Table of n, a(n) for n=0..13.

R. Munafo, Accelerating Sequences

CROSSREFS

Sequence in context: A039774 A114001 A171879 * A004044 A192152 A217098

Adjacent sequences:  A171874 A171875 A171876 * A171878 A171879 A171880

KEYWORD

nonn

AUTHOR

Robert Munafo, Jan 21 2010

STATUS

approved

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Last modified September 22 18:50 EDT 2018. Contains 315270 sequences. (Running on oeis4.)