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A235907 Number of (n+1)X(4+1) 0..2 arrays with the minimum plus the maximum unequal to the lower median plus the upper median in every 2X2 subblock 1
7632, 267548, 9533120, 345346064, 12495925760, 454589648064, 16501573788672, 600431925362944, 21815700608966656, 793604369179700224, 28844899001196888064, 1049108569592280551424, 38138454905136923672576 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A235911

LINKS

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

FORMULA

Empirical: a(n) = 36*a(n-1) +1232*a(n-2) -49072*a(n-3) -320464*a(n-4) +21147264*a(n-5) -41996672*a(n-6) -3277026816*a(n-7) +16049849344*a(n-8) +185646088192*a(n-9) -1087945580544*a(n-10) -2355224936448*a(n-11) +10841935314944*a(n-12) +7255032332288*a(n-13) -30793405562880*a(n-14) -6500433002496*a(n-15) +26613764849664*a(n-16)

EXAMPLE

Some solutions for n=1

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

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

CROSSREFS

Sequence in context: A253041 A068245 A189551 * A252968 A252051 A038011

Adjacent sequences:  A235904 A235905 A235906 * A235908 A235909 A235910

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 16 2014

STATUS

approved

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Last modified January 22 07:31 EST 2022. Contains 350481 sequences. (Running on oeis4.)