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A188632
Size of optimal DNA code of length n and minimal distance 1 over alphabet of size 4.
0
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).
FORMULA
One bisection appears to be A098400.
CROSSREFS
Sequence in context: A149361 A149362 A149363 * A151460 A149364 A055542
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Apr 05 2011
STATUS
approved