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 A209960 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock having one, three or four distinct clockwise edge differences 9
 71, 567, 567, 4521, 12161, 4521, 36057, 260201, 260201, 36057, 287559, 5569307, 14922177, 5569307, 287559, 2293335, 119198607, 856216289, 856216289, 119198607, 2293335, 18289737, 2551206049, 49124545369, 131724081683, 49124545369 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts ........71...........567.............4521................36057 .......567.........12161...........260201..............5569307 ......4521........260201.........14922177............856216289 .....36057.......5569307........856216289.........131724081683 ....287559.....119198607......49124545369.......20262771645033 ...2293335....2551206049....2818513213257.....3117032354510683 ..18289737...54603359537..161711349015585...479493044479186433 .145863801.1168673933963.9278144587101729.73760462168440328563 LINKS R. H. Hardin, Table of n, a(n) for n = 1..312 EXAMPLE Some solutions for n=4 k=3 ..0..0..2..0....1..1..0..1....0..1..2..0....2..1..0..2....0..1..2..2 ..0..2..2..2....2..2..2..0....1..1..2..0....1..1..2..1....0..0..0..2 ..1..1..0..2....1..1..0..0....0..1..1..2....1..0..2..1....0..2..2..1 ..2..0..2..1....2..0..0..0....0..1..2..2....0..0..2..0....1..0..0..0 ..1..2..1..1....0..1..1..0....2..2..0..0....0..2..1..0....2..2..1..2 CROSSREFS Sequence in context: A341426 A250982 A250975 * A209953 A251390 A251383 Adjacent sequences: A209957 A209958 A209959 * A209961 A209962 A209963 KEYWORD nonn,tabl AUTHOR R. H. Hardin Mar 16 2012 STATUS approved

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Last modified November 29 03:18 EST 2022. Contains 358422 sequences. (Running on oeis4.)