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 A250908 Number of (n+1)X(3+1) 0..2 arrays with no 2X2 subblock having its maximum diagonal element less than its minimum antidiagonal element 1
 4909, 297873, 18077319, 1096982379, 66566704705, 4039362762435, 245114118899485, 14873861407326111, 902566310928490467, 54768961329136851033, 3323455667098397402917, 201671846608424737679469 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 3 of A250913 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 FORMULA Empirical: a(n) = 74*a(n-1) -825*a(n-2) +1101*a(n-3) -4926*a(n-4) +231*a(n-5) +1684*a(n-6) +736*a(n-7) EXAMPLE Some solutions for n=1 ..2..2..1..2....0..2..2..1....2..1..0..2....0..2..0..0....1..2..1..1 ..1..2..2..2....0..1..2..1....2..0..1..1....1..1..0..1....0..2..1..0 CROSSREFS Sequence in context: A168028 A031834 A031634 * A179144 A036530 A088069 Adjacent sequences:  A250905 A250906 A250907 * A250909 A250910 A250911 KEYWORD nonn AUTHOR R. H. Hardin, Nov 28 2014 STATUS approved

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Last modified April 16 03:59 EDT 2021. Contains 343030 sequences. (Running on oeis4.)