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A049083 Number of dual atoms in lattice Lambda'_{2^n} of putative parameter sets for orthogonal arrays with 2^n runs. 0
0, 1, 1, 1, 2, 3, 11, 21, 72, 144521 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,5

REFERENCES

Calculated by M. Colgan, E. M. Rains and N. J. A. Sloane, August 1999.

LINKS

Table of n, a(n) for n=0..9.

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: A023182 A302310 A295958 * A305719 A002778 A028816

Adjacent sequences:  A049080 A049081 A049082 * A049084 A049085 A049086

KEYWORD

nonn,nice

AUTHOR

N. J. A. Sloane

STATUS

approved

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Last modified May 31 22:45 EDT 2020. Contains 334756 sequences. (Running on oeis4.)