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A056377
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Number of step shifted (decimated) sequences using exactly three different symbols.
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2
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0, 0, 3, 21, 39, 288, 309, 1659, 3102, 14148, 17157, 136227, 130995, 790128, 1791489, 5427597, 8047839, 64467180, 64486017, 437324331, 871627041, 3136899816, 4278115101, 35355632943, 42359479638
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listen;
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OFFSET
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1,3
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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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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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