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A057580 Maximal numbers of codewords in mixed code with 2 binary coordinates and n ternary coordinates with Hamming distance 3. 2

%I

%S 1,2,4,9,22

%N Maximal numbers of codewords in mixed code with 2 binary coordinates and n ternary coordinates with Hamming distance 3.

%C Is this sequence equal to A105633? - _Paul D. Hanna_, Apr 17 2005

%H Patric R. J. Östergård, <a href="https://users.aalto.fi/~pat/23.html">Classification of small binary/ternary one-error-correcting codes (Appendix)</a>, Discrete Mathematics 223 (2000), 253-262.

%Y Cf. A057574-A057584, A050142.

%K nonn,more

%O 0,2

%A _N. J. A. Sloane_, Oct 04 2000

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Last modified February 25 05:47 EST 2020. Contains 332220 sequences. (Running on oeis4.)