The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A235026 T(n,k) is the number of (n+1) X (k+1) 0..5 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 3, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings). 9
 88, 332, 332, 1248, 1200, 1248, 4704, 4312, 4312, 4704, 17728, 15572, 14800, 15572, 17728, 66848, 56276, 51220, 51220, 56276, 66848, 252032, 203768, 177520, 170568, 177520, 203768, 252032, 950464, 738516, 617600, 569352, 569352, 617600, 738516 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts 88 332 1248 4704 17728 66848 252032 332 1200 4312 15572 56276 203768 738516 1248 4312 14800 51220 177520 617600 2152744 4704 15572 51220 170568 569352 1912444 6442252 17728 56276 177520 569352 1830768 5939792 19332816 66848 203768 617600 1912444 5939792 18670696 58903452 252032 738516 2152744 6442252 19332816 58903452 180093160 950464 2680636 7527124 21811720 63383104 187635828 557393032 3583744 9738960 26367488 74044552 208419288 599716544 1730627064 13515392 35432228 92632604 252514496 689828084 1933347092 5432005844 LINKS R. H. Hardin, Table of n, a(n) for n = 1..161 FORMULA Empirical for column k: k=1: a(n) = 18*a(n-2) -56*a(n-4) +32*a(n-6). k=2: [order 21]. k=3: [order 63]. EXAMPLE Some solutions for n=4, k=4: 3 4 3 5 4 2 3 2 0 1 2 3 2 1 3 0 4 0 5 1 2 0 2 1 3 4 2 4 5 3 1 5 1 3 2 1 2 1 3 2 0 1 0 2 1 0 1 0 4 5 2 3 2 1 3 5 3 5 4 0 5 3 5 4 0 1 5 1 2 0 4 2 4 0 5 0 1 0 2 1 1 2 1 3 2 0 1 0 4 5 3 4 3 2 4 1 5 1 0 2 CROSSREFS Sequence in context: A328872 A001347 A003782 * A323612 A235019 A241846 Adjacent sequences: A235023 A235024 A235025 * A235027 A235028 A235029 KEYWORD nonn,tabl AUTHOR R. H. Hardin, Jan 02 2014 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified April 14 13:30 EDT 2024. Contains 371661 sequences. (Running on oeis4.)