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 A187642 Number of (n+2)X5 0..2 arrays with each 3X3 subblock having sum 9 1
 101419, 363533, 1342083, 5273797, 24351579, 115259453, 564564211, 3003056861, 16240656315, 89645104453, 519095822283, 3041331131645, 18065636068579, 110621336092493, 683205533634603, 4260820568077237, 27116433602180379 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 3 of A187645 LINKS R. H. Hardin, Table of n, a(n) for n = 1..188 EXAMPLE Some solutions for 4X5 ..0..1..2..1..1....0..1..1..1..1....0..0..2..0..0....0..2..1..1..1 ..1..1..2..2..1....1..1..0..1..1....1..1..0..2..2....1..2..0..1..2 ..2..0..0..0..0....1..2..2..0..2....1..2..2..0..1....2..1..0..1..2 ..1..0..2..2..0....0..1..1..1..1....0..2..0..0..2....1..1..1..2..0 CROSSREFS Sequence in context: A251959 A250631 A229684 * A023077 A077760 A218170 Adjacent sequences: A187639 A187640 A187641 * A187643 A187644 A187645 KEYWORD nonn AUTHOR R. H. Hardin Mar 12 2011 STATUS approved

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Last modified July 19 03:15 EDT 2024. Contains 374388 sequences. (Running on oeis4.)