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A251704
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4-step Fibonacci sequence starting with 1, 1, 0, 1.
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5
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1, 1, 0, 1, 3, 5, 9, 18, 35, 67, 129, 249, 480, 925, 1783, 3437, 6625, 12770, 24615, 47447, 91457, 176289, 339808, 655001, 1262555, 2433653, 4691017, 9042226, 17429451, 33596347, 64759041, 124827065, 240611904, 463794357, 893992367, 1723225693
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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, 0, 1.
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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, A251705.
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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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