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

Author

N. J. A. Sloane, Apr 05 2011

Keywords

• nonn

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).

Formula

One bisection appears to be A098400.