A048638 Height of lattice of parameters of mixed orthogonal arrays with 2^n runs and strength 2.

1, 4, 9, 21, 42, 86, 171, 358, 715, 1431

Offset

0,2

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. A039930, A048164.

Sequence in context: A009911 A009887 A009914 * A144527 A117880 A027973

Adjacent sequences: A048635 A048636 A048637 * A048639 A048640 A048641

Keyword

nonn,nice

Author

N. J. A. Sloane, E. M. Rains, J. Stufken

Status

approved