A297371 Number of nX5 0..1 arrays with every 1 horizontally or antidiagonally adjacent to 0, 1 or 2 neighboring 1s.

32, 765, 17534, 409507, 9554038, 222925151, 5201484239, 121365562862, 2831807366510, 66074203141683, 1541701026093913, 35972315080446090, 839337478746672548, 19584155249785343484, 456954617849825544295

Offset

1,1

Comments

Column 5 of A297374.

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Formula

Empirical: a(n) = 24*a(n-1) -14*a(n-2) -23*a(n-3) -339*a(n-4) +535*a(n-5) +104*a(n-6) -229*a(n-7) +7*a(n-8) +8*a(n-9) for n>11

Example

Some solutions for n=5
..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0
..0..1..0..0..0. .0..0..0..1..0. .0..0..0..0..0. .0..0..0..1..0
..0..1..0..1..1. .0..1..0..0..0. .1..0..0..1..0. .0..0..0..0..1
..0..0..0..0..0. .0..1..1..0..0. .0..0..0..1..1. .1..1..0..0..1
..1..0..0..0..0. .0..0..1..1..1. .0..1..0..0..0. .0..1..1..0..0

Crossrefs

Cf. A297374.

Sequence in context: A008789 A207996 A284227 * A144135 A283695 A283127

Adjacent sequences: A297368 A297369 A297370 * A297372 A297373 A297374

Keyword

nonn

Author

R. H. Hardin, Dec 29 2017

Status

approved