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A056386
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Number of primitive (aperiodic) step shifted (decimated) sequences using exactly two different symbols.
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1
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0, 2, 4, 8, 10, 32, 26, 84, 98, 266, 214, 1200, 702, 2770, 4328, 8832, 8230, 44086, 29202, 135744, 176720, 419654, 381490, 2149068, 1678244, 5593294, 7461064, 22550600, 19175158, 134386396, 71585134
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OFFSET
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1,2
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COMMENTS
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See A056371 for an explanation of step shifts.
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REFERENCES
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M. R. Nester (1999). Mathematical investigations of some plant interaction designs. PhD Thesis. University of Queensland, Brisbane, Australia. [See A056391 for pdf file of Chap. 2]
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LINKS
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FORMULA
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Sum mu(d)*A056376(n/d) where d divides n.
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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