The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A204351 T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with no 3X3 subblock having three equal diagonal elements or three equal antidiagonal elements, and new values 0..3 introduced in row major order 9
 9672, 540324, 540324, 30378276, 109655775, 30378276, 1708802980, 22275534255, 22275534255, 1708802980, 96125591660, 4524628081600, 16256855591536, 4524628081600, 96125591660, 5407387617220, 919046909794048 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts ..............9672.................540324.....................30378276 ............540324..............109655775..................22275534255 ..........30378276............22275534255...............16256855591536 ........1708802980..........4524628081600............11860456910608960 .......96125591660........919046909794048..........8653701637919899728 .....5407387617220.....186677705463298720.......6313899655904879255175 ...304183813284988...37918176847270068655....4606746353051274080442020 .17111367047366980.7701980533069758424335.3361172935168170742873724992 LINKS R. H. Hardin, Table of n, a(n) for n = 1..71 EXAMPLE Some solutions for n=3 k=3 ..0..0..1..1..0....0..0..1..0..1....0..0..0..1..1....0..0..0..0..0 ..0..1..0..0..2....0..2..2..1..0....2..2..0..1..3....0..0..0..0..0 ..2..3..1..2..3....3..1..0..1..0....1..3..2..2..1....1..2..2..3..1 ..1..3..3..2..0....0..0..1..2..0....3..2..2..3..2....0..1..0..3..3 ..1..0..3..0..1....3..3..0..2..0....3..3..1..1..2....3..3..2..3..1 CROSSREFS Sequence in context: A237674 A183851 A238036 * A204344 A204343 A068362 Adjacent sequences: A204348 A204349 A204350 * A204352 A204353 A204354 KEYWORD nonn,tabl AUTHOR R. H. Hardin Jan 14 2012 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 June 17 21:09 EDT 2024. Contains 373464 sequences. (Running on oeis4.)