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A251703
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4-step Fibonacci sequence starting with 1,1,0,0.
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6
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1, 1, 0, 0, 2, 3, 5, 10, 20, 38, 73, 141, 272, 524, 1010, 1947, 3753, 7234, 13944, 26878, 51809, 99865, 192496, 371048, 715218, 1378627, 2657389, 5122282, 9873516, 19031814, 36685001, 70712613, 136302944, 262732372, 506432930, 976180859
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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, 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, A251704, 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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