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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A299334 T(n,k) = Number of n X k 0..1 arrays with every element equal to 2, 3, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero. 7
 0, 0, 0, 0, 1, 0, 0, 3, 3, 0, 0, 6, 8, 6, 0, 0, 17, 36, 36, 17, 0, 0, 41, 173, 263, 173, 41, 0, 0, 104, 858, 2537, 2537, 858, 104, 0, 0, 261, 4258, 22718, 46286, 22718, 4258, 261, 0, 0, 655, 21386, 214683, 816886, 816886, 214683, 21386, 655, 0, 0, 1646, 107465, 2024559 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,8 COMMENTS Table starts .0...0.....0.......0.........0...........0.............0...............0 .0...1.....3.......6........17..........41...........104.............261 .0...3.....8......36.......173.........858..........4258...........21386 .0...6....36.....263......2537.......22718........214683.........2024559 .0..17...173....2537.....46286......816886......14783424.......267652693 .0..41...858...22718....816886....27685946.....967671172.....33782479865 .0.104..4258..214683..14783424...967671172...65181402152...4383565657986 .0.261.21386.2024559.267652693.33782479865.4383565657986.567774280392040 LINKS R. H. Hardin, Table of n, a(n) for n = 1..180 FORMULA Empirical for column k: k=1: a(n) = a(n-1); k=2: a(n) = a(n-1) +3*a(n-2) +2*a(n-3); k=3: [order 12] for n > 14; k=4: [order 27] for n > 28; k=5: [order 76] for n > 79. EXAMPLE Some solutions for n=5, k=4 ..0..0..1..1. .0..0..1..1. .0..0..0..0. .0..0..1..1. .0..0..0..0 ..1..0..1..1. .1..0..1..1. .0..1..1..0. .0..0..1..0. .0..0..0..0 ..1..1..0..0. .1..1..1..1. .0..1..0..1. .1..0..0..0. .1..1..1..0 ..1..0..1..0. .1..0..0..1. .1..0..1..1. .1..1..0..0. .0..1..0..1 ..0..0..1..1. .0..0..1..1. .1..1..1..1. .1..0..0..0. .0..0..1..1 CROSSREFS Column 2 is A297972. Sequence in context: A297978 A298629 A298461 * A268759 A298841 A299602 Adjacent sequences: A299331 A299332 A299333 * A299335 A299336 A299337 KEYWORD nonn,tabl AUTHOR R. H. Hardin, Feb 07 2018 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 17 16:56 EDT 2024. Contains 371765 sequences. (Running on oeis4.)