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A187599 Number of (n+2)X5 0..2 arrays with no 2X2 subblock sum equal to any diagonal or antidiagonal neighbor 2X2 subblock sum 1
4034228, 292759792, 21834817212, 1616392693134, 119535001467744, 8847026088947870, 654776681640016806, 48458293039460233184, 3586264824879128318610, 265411874452236154181166 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A187600

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..31

EXAMPLE

Some solutions for 4X5

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

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

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

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

CROSSREFS

Sequence in context: A109207 A104930 A251614 * A246470 A231614 A191346

Adjacent sequences:  A187596 A187597 A187598 * A187600 A187601 A187602

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 11 2011

STATUS

approved

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Last modified October 21 02:29 EDT 2021. Contains 348141 sequences. (Running on oeis4.)