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A111435
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a(n) = Fibonacci(hexanacci(n)).
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0
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0, 0, 0, 0, 0, 1, 1, 1, 3, 21, 987, 2178309, 6557470319842, 59425114757512643212875125, 3016128079338728432528443992613633888712980904400501
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listen;
history;
text;
internal format)
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OFFSET
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0,9
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LINKS
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FORMULA
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EXAMPLE
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MAPLE
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b:= proc(n) option remember; `if`(n<5, 0,
`if`(n=5, 1, add(b(n-j), j=1..6)))
end:
a:= n-> (<<0|1>, <1|1>>^b(n))[1, 2]:
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CROSSREFS
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KEYWORD
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easy,nonn
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AUTHOR
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STATUS
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approved
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