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A302328
Number of 7Xn 0..1 arrays with every element equal to 0, 1, 2 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
1
64, 2785, 18093, 96956, 659949, 5542827, 45861206, 349722102, 2638308693, 20632095349, 164488042149, 1300817850933, 10197522707272, 80099391561538, 632617365948810, 5003985236582103, 39530523959312891, 312110835328722115
OFFSET
1,1
COMMENTS
Row 7 of A302322.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..1..0. .0..0..0..1..0. .0..0..0..1..1. .0..0..0..0..1
..1..1..1..1..0. .1..0..1..1..1. .0..1..0..1..0. .0..1..0..1..1
..0..1..0..0..1. .0..0..0..0..0. .0..1..0..1..0. .1..1..0..1..0
..0..1..0..1..0. .1..1..1..0..1. .1..1..0..1..0. .0..0..0..0..1
..1..0..1..1..0. .1..0..1..0..1. .0..0..0..1..0. .1..1..0..1..1
..0..0..0..1..0. .0..1..1..0..1. .1..1..0..1..0. .0..1..0..1..0
..0..1..0..1..1. .0..0..1..0..1. .1..1..0..0..0. .0..1..1..1..0
CROSSREFS
Cf. A302322.
Sequence in context: A302628 A302420 A303187 * A303021 A302825 A303518
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 05 2018
STATUS
approved