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 A183748 T(n,k) = number of (n+1) X (k+1) 0..2 arrays with equal numbers of 2 X 2 subblocks with sum over 4 and with sum under 4. 10
 19, 147, 147, 1041, 2553, 1041, 10231, 55857, 55857, 10231, 76355, 1389521, 3631179, 1389521, 76355, 639129, 33587307, 263234281, 263234281, 33587307, 639129, 5262685, 829488619, 19216153673, 55212617129, 19216153673, 829488619, 5262685 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts .........19.............147.................1041...................10231 ........147............2553................55857.................1389521 .......1041...........55857..............3631179...............263234281 ......10231.........1389521............263234281.............55212617129 ......76355........33587307..........19216153673..........12024860660055 .....639129.......829488619........1426003404195........2669694620697299 ....5262685.....20777533329......107098914678533......600788747889666009 ...45272931....526362000253.....8126407481779133...136582348832416596017 ..382928623..13427566678795...621298001439642413.31294543292138683447483 .3284527183.344521962594233.47785646470869878477 LINKS R. H. Hardin, Table of n, a(n) for n = 1..83 EXAMPLE Some solutions for 4 X 3: ..1..1..2....2..2..2....0..1..2....0..0..2....2..1..1....2..1..2....2..1..1 ..0..2..1....2..0..0....1..0..1....1..0..0....2..0..1....1..0..2....1..2..0 ..1..0..2....2..0..0....1..2..0....1..2..2....2..0..1....0..0..2....2..0..2 ..0..0..2....1..2..0....1..2..1....2..0..2....1..2..1....2..2..0....1..0..1 ... ...E..P.......P..E.......M..E.......M..M.......P..M.......E..P.......P..E... ...M..P.......E..M.......E..M.......E..E.......E..M.......M..E.......P..E... ...M..E.......P..M.......P..P.......P..P.......P..E.......E..E.......M..M... CROSSREFS Sequence in context: A093646 A264679 A200530 * A241620 A069423 A183740 Adjacent sequences:  A183745 A183746 A183747 * A183749 A183750 A183751 KEYWORD nonn,tabl AUTHOR R. H. Hardin, Jan 06 2011 STATUS approved

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Last modified October 27 23:26 EDT 2020. Contains 338047 sequences. (Running on oeis4.)