1,2

a(2)=4 because 4 isosceles right triangles with area 1/2 can be placed on a

2 X 2 grid.

Cf. A045996.

Sequence in context: A108914 A052469 A033430 this_sequence A088802 A123854 A112850

Adjacent sequences: A088655 A088656 A088657 this_sequence A088659 A088660 A088661

nonn

Yuval Dekel (dekelyuval(AT)hotmail.com), Nov 21 2003