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A017827
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a(n)=a(n-4)+a(n-5).
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1
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1, 0, 0, 0, 1, 1, 0, 0, 1, 2, 1, 0, 1, 3, 3, 1, 1, 4, 6, 4, 2, 5, 10, 10, 6, 7, 15, 20, 16, 13, 22, 35, 36, 29, 35, 57, 71, 65, 64, 92, 128, 136, 129, 156, 220, 264, 265, 285, 376, 484, 529, 550, 661, 860, 1013, 1079, 1211, 1521, 1873, 2092, 2290, 2732, 3394, 3965
(list; graph; refs; listen; history; internal format)
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