A049082 Number of putative parameter sets for orthogonal arrays with 2^n runs.

1, 2, 5, 14, 61, 322, 3058, 33364, 789085, 18614215

Offset

0,2

Comments

Number of nodes in idealized lattice Lambda'_{2^n}.

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

Cf. A008286.

Sequence in context: A110043 A006847 A008286 * A158095 A227365 A059958

Adjacent sequences: A049079 A049080 A049081 * A049083 A049084 A049085

Keyword

nonn,nice

Author

N. J. A. Sloane

Status

approved