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A053718
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Number of n X n binary matrices of order dividing 4 (also number of solutions to X^4=I in GL(n,2)).
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24
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1, 4, 64, 4096, 423616, 128802304, 131119611904, 431739985985536, 2759629471089688576, 52225410257290195369984, 3239317987292851928169447424, 621439868364968017851608618500096
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OFFSET
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1,2
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REFERENCES
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V. Jovovic, The cycle index polynomials of some classical groups, Belgrade, 1995, unpublished.
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LINKS
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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