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A251705
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4-step Fibonacci sequence starting with 1, 1, 1, 0.
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5
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1, 1, 1, 0, 3, 5, 9, 17, 34, 65, 125, 241, 465, 896, 1727, 3329, 6417, 12369, 23842, 45957, 88585, 170753, 329137, 634432, 1222907, 2357229, 4543705, 8758273, 16882114, 32541321, 62725413, 120907121, 233055969, 449229824, 865918327, 1669111241
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OFFSET
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0,5
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LINKS
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FORMULA
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a(n+4) = a(n) + a(n+1) + a(n+2) + a(n+3).
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MATHEMATICA
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PROG
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(J) NB. see A251655 for the program and apply it to 1, 1, 1, 0.
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CROSSREFS
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Other 4-step Fibonacci sequences are A000078, A000288, A001630, A001631, A001648, A073817, A100532, A251654, A251655, A251656, A251703, A251704.
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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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