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A236054 Number of (n+1)X(7+1) 0..2 arrays colored with the difference of the maximum and minimum in each 2X2 subblock 1
169500, 429252, 981554, 2124772, 5670054, 14531028, 44834198, 103052284, 289710868, 714991524, 2073202494, 5037663196, 14400319528, 35544592788, 102319066146, 250987978892, 715147909084, 1775491235180, 5087033191386 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 7 of A236055
LINKS
FORMULA
Empirical: a(n) = 5*a(n-2) +26*a(n-4) -26*a(n-6) -27*a(n-8) -1747*a(n-10) -272*a(n-12) -37717*a(n-14) -62475*a(n-16) +342630*a(n-18) +839939*a(n-20) +4400241*a(n-22) +2441946*a(n-24) -9127258*a(n-26) -22859130*a(n-28) -161997232*a(n-30) -301797384*a(n-32) -438054576*a(n-34) +1413159680*a(n-36) +3841915520*a(n-38) -400228160*a(n-40) -851565568*a(n-42) -1236199808*a(n-44) -2446382592*a(n-46) +1411232256*a(n-48) +27648000*a(n-50) +944087040*a(n-52) +199065600*a(n-54) -1658880000*a(n-56) for n>63
EXAMPLE
Some solutions for n=1
..1..1..2..0..1..2..2..0....0..0..0..0..2..2..1..1....0..1..1..1..1..1..2..0
..1..1..2..1..0..1..2..1....2..0..0..1..1..1..0..0....2..1..0..2..1..1..1..1
CROSSREFS
Sequence in context: A308635 A210152 A089203 * A233801 A233802 A233796
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 18 2014
STATUS
approved

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Last modified July 15 19:27 EDT 2024. Contains 374334 sequences. (Running on oeis4.)