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 A255041 Number of (6+2)X(n+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
 516998, 407885, 346115, 301745, 427420, 553864, 819368, 1126316, 1771048, 2376784, 3556404, 4938968, 7676188, 10266312, 15245496, 20807252, 31244896, 41996068, 61274240, 83381440, 124390140, 167494504, 244118508, 331497864 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 6 of A255036 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 FORMULA Empirical: a(n) = 2*a(n-1) -2*a(n-3) +7*a(n-4) -11*a(n-5) -2*a(n-6) +12*a(n-7) -12*a(n-8) +9*a(n-9) +12*a(n-10) -16*a(n-11) -4*a(n-12) +14*a(n-13) -16*a(n-14) +16*a(n-16) -8*a(n-17) for n>34 EXAMPLE Some solutions for n=1 ..0..1..0....1..0..0....0..1..0....0..0..0....1..0..0....0..0..0....0..1..0 ..0..0..0....1..0..1....0..0..0....0..0..0....0..0..1....0..0..0....0..0..0 ..0..0..1....0..0..1....0..1..0....0..1..0....0..0..1....0..0..0....0..0..1 ..0..0..1....0..1..1....0..0..1....0..1..0....0..1..0....0..0..0....1..0..1 ..0..0..1....1..1..0....1..0..0....1..0..1....0..0..0....1..0..0....0..0..1 ..0..0..1....1..0..1....1..1..0....1..1..1....0..1..0....0..0..1....0..1..1 ..0..1..0....1..1..1....1..0..1....0..1..1....1..1..1....1..0..1....1..1..0 ..0..1..1....0..1..0....0..0..1....0..1..1....1..0..1....0..0..0....1..0..0 CROSSREFS Cf. A255036 Sequence in context: A087096 A072959 A048527 * A255034 A256952 A234173 Adjacent sequences:  A255038 A255039 A255040 * A255042 A255043 A255044 KEYWORD nonn AUTHOR R. H. Hardin, Feb 13 2015 STATUS approved

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Last modified April 9 17:48 EDT 2020. Contains 333361 sequences. (Running on oeis4.)