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Search: id:A132370
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| A132370 |
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Triangle read by rows: T(m,n) = number of spotlight tilings of a width 1 m X n frame. |
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+0
1
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| 16, 34, 34, 58, 68, 58, 88, 112, 112, 88, 124, 166, 180, 166, 124, 166, 230, 262, 262, 230, 166, 214, 304, 358, 376, 358, 304, 214
(list; table; graph; listen)
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OFFSET
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3,1
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REFERENCES
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B. E. Tenner, Spotlight tiling, preprint, 2007.
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FORMULA
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T(m,n) = 2(m-2)(n-2)(m+n-2) + (m-2)(m+1) + (n-2)(n+1)
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EXAMPLE
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A 3 X 3 frame with width 1 has 16 spotlight tilings.
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CROSSREFS
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Sequence in context: A144533 A041510 A070590 this_sequence A091216 A132760 A153819
Adjacent sequences: A132367 A132368 A132369 this_sequence A132371 A132372 A132373
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KEYWORD
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nonn,tabl
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AUTHOR
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Bridget Eileen Tenner (bridget(AT)math.depaul.edu), Nov 09 2007
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