OFFSET
3,1
COMMENTS
Conjecture: a(n) is always odd. - Jon Perry, Sep 18 2014
REFERENCES
Alexander Guterman, Pólya permanent problem: 100 years after, http://www.law05.si/law14/presentations/Guterman.pdf, 2014.
CROSSREFS
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Sep 17 2014
STATUS
editing