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 A210355 T(n,k)=1/4 the number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having one, two or three distinct clockwise edge differences 9
 40, 431, 431, 4615, 13566, 4615, 49484, 423694, 423694, 49484, 530580, 13288986, 38415623, 13288986, 530580, 5689274, 416960476, 3506487749, 3506487749, 416960476, 5689274, 61005068, 13085817650, 320128196268, 934012605398 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts ........40............431...............4615..................49484 .......431..........13566.............423694...............13288986 ......4615.........423694...........38415623.............3506487749 .....49484.......13288986.........3506487749...........934012605398 ....530580......416960476.......320128196268........248817068842201 ...5689274....13085817650.....29234187801911......66307681156504928 ..61005068...410707536246...2669774395715994...17671175952055398322 .654148428.12890620403588.243817307546400921.4709507638686926395711 LINKS R. H. Hardin, Table of n, a(n) for n = 1..144 EXAMPLE Some solutions for n=4 k=3 ..0..1..1..0....3..1..1..2....3..0..1..0....0..1..0..1....3..3..2..0 ..3..2..1..2....0..2..0..1....0..3..2..3....3..2..3..2....0..3..1..1 ..3..3..0..3....0..0..2..2....1..2..2..1....3..2..2..1....3..3..1..0 ..2..2..1..2....1..2..2..1....1..0..0..0....1..1..2..0....1..1..1..2 ..2..3..2..1....3..2..0..3....0..0..0..1....1..0..0..2....1..1..0..3 CROSSREFS Sequence in context: A228122 A247408 A285855 * A210348 A055750 A290611 Adjacent sequences: A210352 A210353 A210354 * A210356 A210357 A210358 KEYWORD nonn,tabl AUTHOR R. H. Hardin Mar 20 2012 STATUS approved

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Last modified May 29 22:05 EDT 2023. Contains 363042 sequences. (Running on oeis4.)