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A048638 Height of lattice of parameters of mixed orthogonal arrays with 2^n runs and strength 2. 2
1, 4, 9, 21, 42, 86, 171, 358, 715, 1431 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
E. M. Rains, N. J. A. Sloane and J. Stufken, The Lattice of N-Run Orthogonal Arrays, J. Stat. Planning Inference, 102 (2002), 477-500 (Abstract, pdf, ps)
CROSSREFS
Sequence in context: A009911 A009887 A009914 * A144527 A117880 A027973
KEYWORD
nonn,nice
AUTHOR
N. J. A. Sloane, E. M. Rains, J. Stufken
STATUS
approved

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Last modified March 28 05:02 EDT 2024. Contains 371235 sequences. (Running on oeis4.)