0,4

Eric Weisstein. Blanche's Dissection.

There are six ways to dissect a square into four rectangles of equal area, so a(4)=6.

Sequence in context: A098964 A079469 A007454 this_sequence A052863 A037128 A057693

Adjacent sequences: A108063 A108064 A108065 this_sequence A108067 A108068 A108069

hard,nonn

Hans Riesebos (hans.riesebos(AT)wanadoo.nl) and Herman Beeksma (herman(AT)beeksma.nl), Jun 03 2005