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A236059 Number of (n+1)X(2+1) 0..2 arrays colored with the difference of the upper median and the minimum in each 2X2 subblock 1
360, 1784, 8506, 41344, 200906, 983796, 4815318, 23498914, 114724352, 560870566, 2740746646, 13385913760, 65395196768, 319541819810, 1561151244530, 7626667014534, 37261178721560, 182048049114668, 889406662186434 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A236065

LINKS

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

FORMULA

Empirical: a(n) = 49*a(n-3) +236*a(n-4) +426*a(n-5) +654*a(n-6) -1133*a(n-7) -5246*a(n-8) -4754*a(n-9) +1867*a(n-10) +17569*a(n-11) -2570*a(n-12) -38230*a(n-13) +38724*a(n-14) +27309*a(n-15) -54534*a(n-16) +44390*a(n-17) +26998*a(n-18) -51374*a(n-19) -28145*a(n-20) -36975*a(n-21) +7568*a(n-22) +67771*a(n-23) +42787*a(n-24) -5128*a(n-25) -24789*a(n-26) -15360*a(n-27) -3*a(n-28) +2726*a(n-29) +348*a(n-30) -160*a(n-31) -32*a(n-32) for n>35

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A205738 A112536 A140801 * A206670 A236991 A205514

Adjacent sequences:  A236056 A236057 A236058 * A236060 A236061 A236062

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 18 2014

STATUS

approved

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Last modified January 19 17:26 EST 2022. Contains 350466 sequences. (Running on oeis4.)