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Search: id:A056389
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| A056389 |
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Number of primitive (aperiodic) step shifted (decimated) sequences using exactly five different symbols. |
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+0
2
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| 0, 0, 0, 0, 30, 900, 2800, 32010, 139080, 1276170, 2960940, 41625330, 75086430, 801519500, 3162262140, 16463761470, 42395689530, 579164323020, 983928850100, 11241276012750, 37913042832500
(list; graph; listen)
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OFFSET
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1,5
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COMMENT
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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.
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FORMULA
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sum mu(d)*A056379(n/d) where d|n.
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CROSSREFS
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Sequence in context: A007850 A158580 A097313 this_sequence A056379 A009974 A041421
Adjacent sequences: A056386 A056387 A056388 this_sequence A056390 A056391 A056392
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KEYWORD
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nonn
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AUTHOR
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Marks R. Nester (nesterm(AT)dpi.qld.gov.au)
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