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A253531 Number of (n+1)X(6+1) 0..2 arrays with every 2X2 subblock antidiagonal maximum minus diagonal minimum nondecreasing horizontally and diagonal maximum minus antidiagonal minimum nondecreasing vertically 1
85663, 176266, 327147, 949158, 1744459, 4292539, 8304638, 18590483, 37412196, 79632497, 161715507, 333968028, 674473122, 1366396447, 2737489031, 5482593881, 10922295848, 21751547857, 43229912120, 85944892631, 170816625840 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A253533

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

FORMULA

Empirical: a(n) = 10*a(n-1) -37*a(n-2) +42*a(n-3) +106*a(n-4) -388*a(n-5) +284*a(n-6) +632*a(n-7) -1382*a(n-8) +364*a(n-9) +1690*a(n-10) -1924*a(n-11) -208*a(n-12) +1808*a(n-13) -1076*a(n-14) -392*a(n-15) +751*a(n-16) -262*a(n-17) -93*a(n-18) +106*a(n-19) -34*a(n-20) +4*a(n-21) for n>42

EXAMPLE

Some solutions for n=2

..0..0..1..1..2..1..2....0..1..0..0..1..0..2....2..0..1..0..1..1..2

..0..0..0..0..1..0..2....1..2..1..0..2..0..2....2..1..1..0..0..0..0

..0..1..1..2..2..0..2....1..2..1..0..2..0..2....0..2..2..2..2..2..2

CROSSREFS

Sequence in context: A200657 A201269 A184212 * A179575 A234805 A186065

Adjacent sequences:  A253528 A253529 A253530 * A253532 A253533 A253534

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 03 2015

STATUS

approved

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Last modified July 7 14:34 EDT 2020. Contains 335495 sequences. (Running on oeis4.)