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A255033 Number of (n+2)X(5+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, 470542, 566341, 474308, 509796, 427420, 427492, 432916, 485356, 514932, 568608, 594132, 683156, 776420, 865380, 917016, 1176612, 1480140, 1742324, 1874460, 2793768, 3962716, 4873308, 5359532, 8893740, 13501792, 17030380 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 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=1

..1..0..0..0..0..0..1....1..0..1..0..1..0..1....0..1..1..1..0..0..0

..0..0..0..0..0..1..0....0..0..0..1..0..0..1....0..0..0..0..1..1..1

..1..1..1..1..0..0..1....0..0..0..0..0..1..1....1..1..1..0..1..0..0

CROSSREFS

Cf. A255036

Sequence in context: A073086 A341212 A255040 * A256951 A101767 A235220

Adjacent sequences:  A255030 A255031 A255032 * A255034 A255035 A255036

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 13 2015

STATUS

approved

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Last modified November 28 23:48 EST 2021. Contains 349415 sequences. (Running on oeis4.)