OFFSET
0,1
REFERENCES
V. Klee and S. Wagon, Unsolved Problems, Math. Assoc. America, 1991, p. 191.
LINKS
T. D. Noe, Table of n, a(n) for n=0..142
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Apr 10 2006
STATUS
approved