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A132370
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Array read by antidiagonals: T(m,n) = number of spotlight tilings of a width 1 m X n frame.
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0
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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; refs; listen; history; internal format)
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OFFSET
| 3,1
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LINKS
| B. E. Tenner, Spotlight tiling, Ann. Combin. 14 (4) (2010) 553
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FORMULA
| T(m,n) = 2(m-2)*(n-2)*(m+n-2) + (m-2)*(m+1) + (n-2)*(n+1)
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EXAMPLE
| A 3 X 3 frame with width 1 has 16 spotlight tilings.
.16..34..58...88..124..166..214..268...
.34..68.112..166..230..304..388..482....
.58.112.180..262..358..468..592..730....
.88.166.262..376..508..658..826.1012....
124.230.358..508..680..874.1090.1328....
166.304.468..658..874.1116.1384.1678....
214.388.592..826.1090.1384.1708.2062....
268.482.730.1012.1328.1678.2062.2480...
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CROSSREFS
| Sequence in context: A144533 A041510 A070590 * A185467 A091216 A132760
Adjacent sequences: A132367 A132368 A132369 * A132371 A132372 A132373
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KEYWORD
| nonn,tabl
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AUTHOR
| Bridget Eileen Tenner (bridget(AT)math.depaul.edu), Nov 09 2007
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