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 A255032 Number of (n+2)X(4+2) 0..1 arrays with every 3X3 subblock sum of the two sums of the central row and central column minus the two minimums of the diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally 1
 42890, 149676, 246173, 281112, 340084, 301745, 310872, 321641, 365650, 388347, 456154, 520919, 607758, 664717, 850912, 1044341, 1325468, 1478889, 2146514, 2860091, 3875642, 4447991, 7000750, 9802797, 13761536, 15966869, 26093244 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 4 of A255036 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 FORMULA Empirical: a(n) = a(n-1) +a(n-2) -a(n-3) +4*a(n-4) -3*a(n-5) -5*a(n-6) +3*a(n-7) +a(n-8) -4*a(n-9) +4*a(n-10) +4*a(n-11) -4*a(n-12) for n>20 EXAMPLE Some solutions for n=2 ..0..0..1..0..1..1....0..0..0..0..1..1....1..0..1..1..1..1....1..0..0..1..1..0 ..0..0..0..0..0..0....1..0..0..1..1..1....1..0..0..0..0..0....1..0..0..0..0..0 ..0..0..0..1..1..0....1..1..1..1..0..1....1..0..1..1..1..0....0..0..1..0..1..0 ..1..1..0..1..1..1....1..0..0..0..1..0....0..0..0..0..1..1....0..1..1..1..1..1 CROSSREFS Cf. A255036 Sequence in context: A236032 A014892 A255039 * A256950 A237847 A236984 Adjacent sequences:  A255029 A255030 A255031 * A255033 A255034 A255035 KEYWORD nonn AUTHOR R. H. Hardin, Feb 13 2015 STATUS approved

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Last modified December 6 06:14 EST 2021. Contains 349563 sequences. (Running on oeis4.)