The Unewsual VI - the monolith

From BBC News: Metal monolith found by helicopter crew in Utah desert... For what it's worth, this clearly isn't a 2001-style monolith; readers of Clarke's novel will know that the monolith's proportions have a ratio 1:4:9, i.e. the squares of the first three ordinal numbers. Come on, art pranksters, if you're going to stick a monolith in the desert for a laugh, at least do it right...