OFFSET
0,5
MAPLE
seq(floor((1/4)*(floor(sqrt(4*k+1))-1)^2), k=0..50)
MATHEMATICA
Flatten[Table[Table[Floor[n^2/4], {1 + Floor[n/2]}], {n, 0, 20}]] (* T. D. Noe, Feb 07 2012 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Mircea Merca, Feb 05 2012
STATUS
approved