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A236090 Number of (n+1)X(2+1) 0..2 arrays colored with the difference of the maximum and the upper median in each 2X2 subblock 1
344, 1960, 10912, 59398, 321368, 1787690, 9900936, 54118764, 295217284, 1633131298, 9015043100, 49376234152, 270394664828, 1491691040990, 8218703963596, 45077289476146, 247327095667008, 1362361458781028 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A236096

LINKS

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

FORMULA

Empirical: a(n) = 28*a(n-3) +591*a(n-4) +642*a(n-5) +1360*a(n-6) +3146*a(n-7) -10200*a(n-8) -7734*a(n-9) +9306*a(n-10) -5336*a(n-11) +14804*a(n-12) +19462*a(n-13) -6478*a(n-14) -2372*a(n-15) +3016*a(n-16) +2772*a(n-17) +24*a(n-18) -582*a(n-19) -53*a(n-20) for n>22

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A013306 A044878 A085336 * A237378 A237243 A183680

Adjacent sequences:  A236087 A236088 A236089 * A236091 A236092 A236093

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 19 2014

STATUS

approved

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Last modified November 29 21:32 EST 2021. Contains 349416 sequences. (Running on oeis4.)