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A023440
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Dying rabbits: a(n) = a(n-1) + a(n-2) - a(n-10).
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2
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0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 88, 142, 228, 367, 590, 949, 1526, 2454, 3946, 6345, 10203, 16406, 26381, 42420, 68211, 109682, 176367, 283595, 456016, 733266, 1179079, 1895939, 3048637, 4902156, 7882582
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OFFSET
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0,4
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LINKS
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Index entries for linear recurrences with constant coefficients, signature (1,1,0,0,0,0,0,0,0,-1).
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FORMULA
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G.f.: x/((x - 1)*(x^9 + x^8 + x^7 + x^6 + x^5 + x^4 + x^3 + x^2 - 1)). - R. J. Mathar, Nov 29 2011
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CROSSREFS
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See A000045 for the Fibonacci numbers.
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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