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 A222679 T(n,k)=Number of nXk 0..3 arrays with no more than floor(nXk/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..3 order 9
 1, 1, 2, 1, 1, 5, 4, 5, 5, 15, 5, 10, 11, 18, 51, 14, 25, 58, 130, 63, 187, 17, 150, 142, 527, 670, 234, 715, 75, 359, 2398, 5374, 8276, 9587, 1163, 2795, 95, 2249, 6463, 58167, 69973, 133028, 51055, 4953, 11051, 411, 6511, 146947, 687222, 1999404, 3759625 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS Table starts ......1......1........1.........4..........5.........14.........17.........75 ......2......1........5........10.........25........150........359.......2249 ......5......5.......11........58........142.......2398.......6463.....146947 .....15.....18......130.......527.......5374......58167.....687222...11377192 .....51.....63......670......8276......69973....1999404...20997839.1097897602 ....187....234.....9587....133028....3759625...96510910.3254033272 ....715...1163....51055...2363628...65204276.5825299399 ...2795...4953...832433..40206464.4282689196 ..11051..24021..4403793.727306856 ..43947.109395.76270010 .175275.536457 .700075 LINKS R. H. Hardin, Table of n, a(n) for n = 1..82 EXAMPLE Some solutions for n=3 k=4 ..0..1..0..0....0..0..0..0....0..1..0..1....0..0..0..1....0..0..0..0 ..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..2....0..0..0..0 ..0..0..0..0....0..1..0..0....0..0..0..0....0..0..0..1....0..0..1..1 CROSSREFS Column 1 is A007581(n-1) Column 2 is A222373 Row 1 is A222372 Sequence in context: A327884 A050145 A222573 * A058676 A147649 A147644 Adjacent sequences:  A222676 A222677 A222678 * A222680 A222681 A222682 KEYWORD nonn,tabl AUTHOR R. H. Hardin Feb 28 2013 STATUS approved

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Last modified November 30 20:17 EST 2021. Contains 349425 sequences. (Running on oeis4.)