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A302284 Number of 7 X n 0..1 arrays with every element equal to 1, 2 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. 1
0, 421, 3401, 3316, 14639, 69601, 384916, 1354563, 4386347, 20677591, 97720565, 380885387, 1475260386, 6221755468, 27340927933, 112702562636, 453867039251, 1891967304535, 8027410092863, 33418076358717, 137512996312519 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 7 of A302278.

LINKS

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

EXAMPLE

Some solutions for n=5:

  0 0 1 0 1     0 0 0 1 1     0 0 0 0 1     0 0 1 0 1

  0 0 1 1 0     0 1 0 1 0     1 1 1 1 0     0 1 1 1 0

  0 1 0 0 1     0 1 1 0 0     1 0 1 0 1     1 1 1 1 0

  0 0 1 0 1     1 0 0 1 1     0 0 0 0 1     0 0 1 0 1

  1 0 0 1 1     0 1 0 1 0     0 1 0 1 1     1 0 1 0 1

  0 1 0 0 1     1 1 0 0 0     1 0 0 0 0     1 1 1 1 0

  1 1 0 1 0     0 0 1 1 1     0 1 1 1 0     0 0 0 0 1

CROSSREFS

Cf. A302278.

Sequence in context: A217587 A068701 A340157 * A302732 A251198 A302533

Adjacent sequences:  A302281 A302282 A302283 * A302285 A302286 A302287

KEYWORD

nonn

AUTHOR

R. H. Hardin, Apr 04 2018

STATUS

approved

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Last modified April 20 08:54 EDT 2021. Contains 343125 sequences. (Running on oeis4.)