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Search: id:A111388
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| 0, 0, 0, 0, 0, 1, 1, 2, 3, 5, 8, 12, 17, 26, 38, 56, 82, 120, 176, 258, 379, 556, 815, 1194, 1751, 2566, 3761, 5512, 8079, 11840, 17353, 25432, 37272, 54625, 80057, 117330, 171955, 252013, 369343, 541298, 793311, 1162654, 1703953, 2497265, 3659920
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OFFSET
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1,8
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COMMENT
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The sequence A111288 grows very rapidly, as evidenced here, so it makes more sense to take the log of these terms.
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MATHEMATICA
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l = {1, 1, 1, 1}; For[n = 5, n <= 50, n++, k = l[[n-1]]*l[[n-3]] + l[[n-2]]*l[[n-4]]; AppendTo[l, k]]; Print[Map[Floor, Map[Log, l]]]
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CROSSREFS
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Sequence in context: A061535 A129504 A024789 this_sequence A127884 A105858 A086676
Adjacent sequences: A111385 A111386 A111387 this_sequence A111389 A111390 A111391
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KEYWORD
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nonn
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AUTHOR
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Ryan Propper (rpropper(AT)stanford.edu), Nov 09 2005
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