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A237030 Number of (n+1)X(3+1) 0..2 arrays with the maximum of every 2X2 subblock equal 1
4042, 221994, 11703666, 638436002, 34552648978, 1877852845426, 101931021677874, 5535866559864146, 300598632229153394, 16323738622843292626, 886423519070746122162, 48135683617041421708818 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 3 of A237035
LINKS
FORMULA
Empirical: a(n) = 44*a(n-1) +881*a(n-2) -15698*a(n-3) -113114*a(n-4) +890992*a(n-5) +3248928*a(n-6) -2915328*a(n-7) -5741568*a(n-8) +4644864*a(n-9)
EXAMPLE
Some solutions for n=1
..0..1..2..1....0..2..0..2....0..2..0..2....1..2..0..0....1..0..2..2
..1..2..0..1....1..0..0..1....0..1..1..2....0..1..2..1....1..2..1..0
CROSSREFS
Sequence in context: A178274 A332458 A204948 * A252809 A202313 A001382
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 02 2014
STATUS
approved

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Last modified February 26 22:44 EST 2024. Contains 370354 sequences. (Running on oeis4.)