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 A111155 Smallest constant of a multiplicative bimagic square of order n. 0
 120, 4320, 277200, 25945920, 3632428800, 670442572800, 140792940288000 (list; graph; refs; listen; history; text; internal format)
 OFFSET 3,1 COMMENTS Clearly this is a number k that has n^2 distinct factors multiplying to give k^n. For all the values checked so far, it is the smallest such number. LINKS Table of n, a(n) for n=3..9. Christian Boyer, The smallest possible multiplicative magic squares . EXAMPLE Examples of a 3 X 3 multiplicative bimagic square with constant 120 are 01 12 10 15 02 04 08 05 03 -------- 01 20 06 12 02 05 10 03 04 -------- 01 20 06 08 03 05 15 02 04 CROSSREFS Sequence in context: A342073 A055360 A001807 * A283344 A223754 A174686 Adjacent sequences: A111152 A111153 A111154 * A111156 A111157 A111158 KEYWORD nonn AUTHOR Luke Pebody (ltp1000(AT)cam.ac.uk), Oct 20 2005 EXTENSIONS More terms from David W. Wilson, Feb 02 2006 STATUS approved

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Last modified December 5 19:03 EST 2023. Contains 367593 sequences. (Running on oeis4.)