Binary self-dual codes of length 24
Vera S. Pless, Neil J.A. Sloane · Bulletin of the American Mathematical Society · 1974
There are 26 distinct indecomposable self-dual codes of length 24 over GF(2), including unique codes of minimum weights 8 and 6, whose groups are, respectively, the Mathieu group M 2 4 and the maximal subgroup of index 1771 in M^> For each code we give the order of its group, the number of equivalent codes, and its weight distribution. AMS (MOS) subject classifications (1970). Primary 94A10; Secondary 05A15, 15A03.