OFFSET
1,2
COMMENTS
Hegarty, who attributes the set to Conway, proves its minimality. - Charles R Greathouse IV, Sep 26 2019
REFERENCES
B. Hayes, Calculemus!, American Scientist, 96 (Sep-Oct 2008), 362-366.
LINKS
CROSSREFS
KEYWORD
nonn,fini,full
AUTHOR
N. J. A. Sloane, Sep 08 2008
STATUS
approved