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A114595
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Triangle of the numbers of unique-valued sequences of all lengths (from 1 to 2n-1) consisting of unit matrices (="matrix units") of order n.
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1
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1, 4, 6, 4, 9, 24, 48, 60, 30, 16, 60, 192, 480, 840, 840, 336, 25, 120, 520, 1920, 5700, 12600, 18480, 15120, 5040, 36, 210, 1140, 5520, 22920, 78120, 206640, 393120, 483840, 332640, 95040
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OFFSET
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1,2
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COMMENTS
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First entry of each row is obviously n^2 and the last entries of each row are the terms of A001761.
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LINKS
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EXAMPLE
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T(n,1) = a(n^2 - 2n) = n^2.
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CROSSREFS
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KEYWORD
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AUTHOR
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Aleksandar Blazhevski - Cane (CaneB(AT)MT.Net.Mk), Dec 12 2005
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STATUS
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approved
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