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 A206169 T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock in a row having an equal number of equal diagonal or equal antidiagonal elements, adjacent rows differing in this number, and new values 0..3 introduced in row major order. 15
 15, 85, 102, 641, 1070, 870, 5257, 14182, 17142, 7566, 44585, 196078, 463878, 238182, 68342, 385465, 2728486, 13899222, 10599630, 3814022, 609086, 3375401, 38016046, 431954406, 526154358, 345652310, 53494742, 5514982, 29817817, 529805350 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts .......15..........85...........641.............5257.............44585 ......102........1070.........14182...........196078...........2728486 ......870.......17142........463878.........13899222.........431954406 .....7566......238182......10599630........526154358.......26687737998 ....68342.....3814022.....345652310......37242588902.....4224315021758 ...609086....53494742....7934434238....1412613762182...261163772277422 ..5514982...850283062..257597022598...99795262195942.41314757480152390 .49362414.12012206406.5939045721006.3792559398258150 LINKS R. H. Hardin, Table of n, a(n) for n = 1..71 EXAMPLE Some solutions for n=4 k=3 ..0..1..0..0....0..0..0..1....0..0..0..0....0..0..0..0....0..0..0..1 ..1..1..1..0....0..1..0..0....0..1..0..1....0..0..0..0....0..1..0..0 ..2..3..2..0....0..1..2..1....2..2..0..2....1..0..1..0....2..1..2..2 ..1..2..1..2....3..0..1..0....3..2..2..1....1..3..3..2....2..2..2..3 ..0..0..1..0....1..2..1..2....3..0..3..1....1..1..3..3....1..3..1..0 CROSSREFS Column 1 is A205424. Sequence in context: A020136 A176033 A067401 * A160599 A091286 A176070 Adjacent sequences:  A206166 A206167 A206168 * A206170 A206171 A206172 KEYWORD nonn,tabl AUTHOR R. H. Hardin Feb 04 2012 STATUS approved

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Last modified September 18 04:22 EDT 2021. Contains 347508 sequences. (Running on oeis4.)