An extremal singly even self-dual code of length 88
Masaaki Harada, Takuji Nishimura · Advances in Mathematics of Communications · 2007
An extremal singly even self-dual [88, 44, 16] code is constructed for the first time. Some optimal (extremal) singly even self-dual codes with weight enumerators which were not known to be attainable are also found for lengths 68 and 92.