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A295269 Number of n X n 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 1 or 4 1's. 1
2, 11, 164, 6659, 748740, 230659662, 196091375073, 458510348625561, 2951683183977839155, 52303382279027148884728, 2551191530898428081696382880, 342537007989863347885673784022387 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A295275.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..14

EXAMPLE

Some solutions for n=4

..0..0..0..1....0..0..1..1....0..1..0..1....1..0..1..0....0..0..0..1

..0..0..1..0....1..0..0..0....0..0..1..0....0..1..0..1....0..0..0..0

..0..1..0..1....0..0..1..0....0..0..0..0....1..1..1..0....0..0..0..0

..0..1..0..0....0..1..0..1....1..0..1..1....0..1..0..1....0..0..1..0

CROSSREFS

Cf. A295275.

Sequence in context: A288560 A318173 A067968 * A197336 A013050 A051255

Adjacent sequences:  A295266 A295267 A295268 * A295270 A295271 A295272

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 19 2017

STATUS

approved

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Last modified October 22 04:53 EDT 2021. Contains 348160 sequences. (Running on oeis4.)