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 A181024 T(n,k)=Maximum number of 1s in an nXk binary matrix with no four 1s adjacent in a line along a row, column or diagonally 5
 1, 2, 2, 3, 4, 3, 3, 6, 6, 3, 4, 6, 9, 6, 4, 5, 8, 9, 9, 8, 5, 6, 10, 12, 12, 12, 10, 6, 6, 12, 15, 15, 15, 15, 12, 6, 7, 12, 18, 18, 18, 18, 18, 12, 7, 8, 14, 18, 20, 22, 22, 20, 18, 14, 8, 9, 16, 21, 23, 25, 26, 25, 23, 21, 16, 9, 9, 18, 24, 26, 28, 31, 31, 28, 26, 24, 18, 9, 10, 18, 27, 28, 32 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Table starts .1..2..3..3..4..5..6..6..7..8..9..9.10.11.12 .2..4..6..6..8.10.12.12.14.16.18.18.20.22... .3..6..9..9.12.15.18.18.21.24.27.27.30...... .3..6..9.12.15.18.20.23.26.28.31.34......... .4..8.12.15.18.22.25.28.32.35.39............ .5.10.15.18.22.26.31.34.38.42............... .6.12.18.20.25.31.36.39.44.................. .6.12.18.23.28.34.39........................ .7.14.21.26.32.38........................... .8.16.24.28.35.............................. LINKS R. H. Hardin, Table of n, a(n) for n=1..112 CROSSREFS Sequence in context: A054703 A048206 A075765 * A214744 A014656 A003078 Adjacent sequences:  A181021 A181022 A181023 * A181025 A181026 A181027 KEYWORD nonn,tabl AUTHOR R. H. Hardin Sep 30 2010 STATUS approved

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