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A190968
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a(n) = 4*a(n-1) - 10*a(n-2), with a(0)=0, a(1)=1.
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2
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0, 1, 4, 6, -16, -124, -336, -104, 2944, 12816, 21824, -40864, -381696, -1118144, -655616, 8558976, 40792064, 77578496, -97606656, -1166211584, -3688779776, -3093003264, 24515784704, 128993171456, 270814838784, -206672359424, -3534837825536, -12072627707904
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OFFSET
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0,3
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LINKS
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FORMULA
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MATHEMATICA
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LinearRecurrence[{4, -10}, {0, 1}, 50]
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CROSSREFS
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Cf. A190958 (index to generalized Fibonacci sequences).
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KEYWORD
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sign
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AUTHOR
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STATUS
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approved
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