%0 Journal Article %A Čerin, Zvonko %T Sums of squares and products of Jacobsthal numbers %J Journal of integer sequences %D 2007 %V 10 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/JIS_2007__10_2_a4/ %G en %F JIS_2007__10_2_a4