A188632 Size of optimal DNA code of length n and minimal distance 1 over alphabet of size 4.

1, 4, 12, 44, 160, 640, 2240, 8912, 32256

Offset

1,2

Comments

See Sun et al. reference for precise definition.

References

J. Sun, S. Houghten and J. Ross, Edit metric codes with combinatorial DNA constraints, Congessus Numerant., 204 (2010), 65-92 (see Table 1).

Links

Table of n, a(n) for n=1..9.

Formula

One bisection appears to be A098400.

Crossrefs

Sequence in context: A149361 A149362 A149363 * A151460 A149364 A055542

Adjacent sequences: A188629 A188630 A188631 * A188633 A188634 A188635

Keyword

nonn

Author

N. J. A. Sloane, Apr 05 2011

Status

approved