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A103744 There are, up to equivalence (i.e. symmetries and rotations), 880 magic squares of order 4 (cf. A006052). Say that two squares are of the same type if one can be obtained from the other by complementing (replacing each entry i by 17-i) and applying symmetries. There are 12 types. Sequence gives the population of each of the types, arranged in nondecreasing order. +0
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8, 8, 48, 48, 48, 56, 56, 56, 56, 96, 96, 304 (list; graph; listen)
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Last modified December 13 23:45 EST 2009. Contains 170824 sequences.


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