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A293090 Number of 4 X n 0..1 arrays with the number of 1's horizontally or antidiagonally adjacent to some 0 two less than the number of 0's adjacent to some 1. 1
0, 10, 498, 8108, 125848, 1900201, 28709764, 435581165, 6638075636, 101571134541, 1559620441607, 24020341461662, 370919586815724, 5740889185248758, 89034754024149656, 1383318002074531596, 21526968518644809557 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Row 4 of A293087.
LINKS
EXAMPLE
Some solutions for n=4
..1..0..0..0. .0..0..1..1. .1..1..0..1. .1..1..0..0. .0..0..0..1
..0..1..0..0. .0..1..1..0. .0..0..1..0. .0..0..0..0. .1..0..0..0
..1..1..1..1. .0..0..0..0. .0..1..1..0. .1..0..1..0. .1..0..0..1
..0..0..1..1. .0..0..0..0. .0..1..0..0. .1..1..1..0. .0..0..0..1
CROSSREFS
Cf. A293087.
Sequence in context: A223122 A071096 A039835 * A127947 A095232 A042209
KEYWORD
nonn
AUTHOR
R. H. Hardin, Sep 30 2017
STATUS
approved

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Last modified April 19 15:34 EDT 2024. Contains 371794 sequences. (Running on oeis4.)