OFFSET
1,2
COMMENTS
See reference for precise definition.
The old entry with this sequence number was a duplicate of A008284.
REFERENCES
J. H. Conway et al., The Symmetries of Things, Peters, 2008, p. 406.
CROSSREFS
KEYWORD
nonn,fini,full
AUTHOR
N. J. A. Sloane, Oct 03 2008
STATUS
approved