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 A255040 Number of (5+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
 154680, 196724, 256941, 340084, 509796, 679364, 1001108, 1527986, 2511384, 2809624, 4351252, 6087760, 9523604, 11861776, 17669024, 24264636, 36530112, 46441548, 69037416, 93999336, 140746548, 181125992, 270554212, 368027184 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 5 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>33 EXAMPLE Some solutions for n=2 ..1..0..0..1....0..0..0..0....0..1..0..0....1..0..0..1....0..0..0..1 ..0..0..0..1....1..0..0..1....1..0..1..0....0..0..0..1....0..0..0..0 ..0..0..0..1....1..0..0..1....1..0..1..0....1..0..0..1....0..0..1..0 ..0..1..0..1....1..0..1..1....0..1..0..1....1..0..0..0....1..0..0..1 ..0..0..0..1....0..1..1..0....0..1..0..1....1..0..1..1....0..1..1..1 ..0..1..1..0....1..1..0..1....1..0..1..1....1..1..1..1....1..1..1..1 ..1..0..1..0....1..0..1..0....0..0..0..0....0..1..1..1....1..1..1..0 CROSSREFS Cf. A255036 Sequence in context: A234553 A073086 A341212 * A255033 A256951 A101767 Adjacent sequences:  A255037 A255038 A255039 * A255041 A255042 A255043 KEYWORD nonn AUTHOR R. H. Hardin, Feb 13 2015 STATUS approved

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Last modified August 12 16:32 EDT 2022. Contains 356077 sequences. (Running on oeis4.)