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Search: id:A056385
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| A056385 |
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Number of primitive (aperiodic) step shifted (decimated) sequences using a maximum of six different symbols. |
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+0
2
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| 6, 30, 120, 720, 2010, 23820, 46950, 434700, 1683450, 15126810, 36284466, 547180200, 1088416050, 13060942950, 58782162480, 352913410080, 1057916846190, 16926687985950, 33853322280030
(list; graph; listen)
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OFFSET
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1,1
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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)*A056375(n/d) where d|n.
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CROSSREFS
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Sequence in context: A117489 A050510 A055281 this_sequence A073970 A074009 A002446
Adjacent sequences: A056382 A056383 A056384 this_sequence A056386 A056387 A056388
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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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