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A231128 Number of (n+1)X(5+1) white-square subarrays of 0..2 arrays with no element equal to a strict majority of its diagonal and antidiagonal neighbors, with values 0..2 introduced in row major order 2
44, 808, 16812, 336004, 6794904, 137063228, 2766762720, 55844298404, 1127200291672, 22752159616932, 459245479460980, 9269732838699552, 187106806814395160, 3776695456768760064, 76231479318266197484 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 5 of A231131
LINKS
FORMULA
Empirical: a(n) = 19*a(n-1) +100*a(n-2) -1421*a(n-3) -4571*a(n-4) +41798*a(n-5) +109974*a(n-6) -656246*a(n-7) -1487069*a(n-8) +6049195*a(n-9) +10975788*a(n-10) -36061191*a(n-11) -49057120*a(n-12) +141523895*a(n-13) +153287320*a(n-14) -392824214*a(n-15) -336027204*a(n-16) +774335315*a(n-17) +540155584*a(n-18) -1090045760*a(n-19) -660547896*a(n-20) +1055685216*a(n-21) +727317632*a(n-22) -736522560*a(n-23) -722352896*a(n-24) +448343296*a(n-25) +529357824*a(n-26) -270748672*a(n-27) -249294848*a(n-28) +108318720*a(n-29) +74661888*a(n-30) -20348928*a(n-31) -12419072*a(n-32) +1310720*a(n-33) +786432*a(n-34)
EXAMPLE
Some solutions for n=3
..0..x..0..x..1..x....0..x..1..x..1..x....0..x..1..x..0..x....0..x..1..x..1..x
..x..2..x..0..x..0....x..2..x..0..x..0....x..2..x..1..x..0....x..1..x..0..x..2
..2..x..1..x..1..x....0..x..0..x..1..x....1..x..2..x..1..x....2..x..1..x..2..x
..x..0..x..2..x..0....x..1..x..0..x..0....x..0..x..0..x..0....x..0..x..0..x..1
CROSSREFS
Sequence in context: A232139 A296576 A202164 * A297605 A297083 A282994
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 04 2013
STATUS
approved

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Last modified June 24 22:33 EDT 2024. Contains 373690 sequences. (Running on oeis4.)