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A056376 Number of step shifted (decimated) sequences using exactly two different symbols. +0
6
0, 2, 4, 10, 10, 38, 26, 94, 102, 278, 214, 1246, 702, 2798, 4342, 8926, 8230, 44222, 29202, 136030, 176750, 419870, 381490, 2150398, 1678254, 5593998, 7461166, 22553406, 19175158, 134391038, 71585134 (list; graph; listen)
OFFSET

1,2

COMMENT

See A056371 for an explanation of step shifts.

REFERENCES

M. R. Nester (1999). Mathematical investigations of some plant interaction designs. PhD Thesis. University of Queensland, Brisbane, Australia.

FORMULA

A056371(n)-2.

CROSSREFS

Cf. A056371.

Sequence in context: A124108 A097211 A092945 this_sequence A136818 A029984 A101519

Adjacent sequences: A056373 A056374 A056375 this_sequence A056377 A056378 A056379

KEYWORD

nonn

AUTHOR

Marks R. Nester (nesterm(AT)dpi.qld.gov.au)

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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