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 A206650 T(n,k)=Number of nXk 0..2 arrays with no occurrence of three equal elements in a row horizontally or vertically, and new values 0..2 introduced in row major order 8
 1, 2, 2, 4, 14, 4, 11, 96, 96, 11, 30, 726, 1625, 726, 30, 82, 5400, 30145, 30145, 5400, 82, 224, 40344, 545520, 1414023, 545520, 40344, 224, 612, 301056, 9937823, 64166392, 64166392, 9937823, 301056, 612, 1672, 2247264, 180716227, 2937839117 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Table starts ...1.......2..........4............11................30...................82 ...2......14.........96...........726..............5400................40344 ...4......96.......1625.........30145............545520..............9937823 ..11.....726......30145.......1414023..........64166392...........2937839117 ..30....5400.....545520......64166392........7241587334.........826407481102 ..82...40344....9937823....2937839117......826407481102......235596375117548 .224..301056..180716227..134185561617....94026798615720....66923081500826797 .612.2247264.3287842038.6132878568838.10706810410657410.19028556027562892700 LINKS R. H. Hardin, Table of n, a(n) for n = 1..112 EXAMPLE Some solutions for n=4 k=3 ..0..1..2....0..0..1....0..0..1....0..0..1....0..1..0....0..0..1....0..0..1 ..1..2..1....0..0..1....2..0..2....2..1..2....2..1..2....1..2..1....2..0..0 ..0..2..1....1..2..0....2..1..2....2..2..1....2..2..1....0..2..2....2..1..0 ..1..1..2....1..2..1....0..0..1....0..1..1....0..1..1....0..0..2....0..2..2 CROSSREFS Column 1 is A021006(n-3) Column 2 is A204699 Sequence in context: A267957 A204978 A204705 * A268049 A267911 A120654 Adjacent sequences: A206647 A206648 A206649 * A206651 A206652 A206653 KEYWORD nonn,tabl AUTHOR R. H. Hardin Feb 11 2012 STATUS approved

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Last modified August 7 21:19 EDT 2024. Contains 375017 sequences. (Running on oeis4.)