OFFSET
1,1
COMMENTS
All such numbers may be written as n*(n+1)-k or n*(n+1)+k with k odd < n and n > 1.
FORMULA
for l=1 to n for c=l to n T(l, c)=(l+c)*(l+c+1)-2*l+1 next c next l for c=1 to n for l=c+1 to n T(l, c)=(l+c-1)*(l+c)+2*c-1 next l next c
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Pierre CAMI, Jan 29 2006
EXTENSIONS
Edited by N. J. A. Sloane, Jul 18 2009
STATUS
approved