出典:Wiktionary
bimagic square (複数形 bimagic squares)
出典:Wikipedia
出典:『Wikipedia』 (2011/04/22 15:49 UTC 版)
In mathematics, a bimagic square is a magic square that also remains magic if all of the numbers it contains are squared. The first known bimagic square has order 8 and magic constant 260; it has been conjectured by Bensen and Jacoby that no nontrivial bimagic squares of order less than 8 exist. This was shown for magic squares containing the elements 1 to n2 by Boyer and Trump.