OFFSET
0,3
COMMENTS
a(4^9)=1 is the last term. - Sean A. Irvine, Aug 08 2020
LINKS
H. Fripertinger, Isometry Classes of Codes
H. Fripertinger, Enumeration, construction and random generation of block codes, Designs, Codes, Crypt., 14 (1998), 213-219.
CROSSREFS
KEYWORD
nonn,fini
AUTHOR
STATUS
approved