OFFSET
0,1
LINKS
J. H. Conway and N. J. A. Sloane, Lexicographic codes: error-correcting codes from game theory, IEEE Transactions on Information Theory, 32:337-348, 1986.
R. W. Hamming, Error Detecting and Error Correcting Codes, Bell System Tech. J., Vol. 29, April, 1950, pp. 147-160.
Ari Trachtenberg, Error-Correcting Codes on Graphs: Lexicodes, Trellises and Factor Graphs
FORMULA
a(n) = b(2^n), where b is the Hamming code d=3.
b(n) = XOR(a(i)) where i is a bit set in n.
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Bob Jenkins (bob_jenkins(AT)burtleburtle.net)
STATUS
approved