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A297725
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Number of 6Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1, 2 or 4 neighboring 1s.
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1
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1, 876, 21116, 268630, 6812856, 183324631, 4021047904, 89397422003, 2107800484124, 48991993784653, 1122852568198335, 25900643054077073, 599236232228096280, 13831438744530944473, 319108863737459622613
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OFFSET
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1,2
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COMMENTS
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Row 6 of A297720.
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LINKS
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R. H. Hardin, Table of n, a(n) for n = 1..210
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EXAMPLE
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Some solutions for n=3
..0..1..0. .0..1..1. .0..1..1. .0..0..1. .0..0..0. .0..0..1. .0..1..0
..0..0..1. .1..1..0. .1..0..0. .1..1..1. .0..1..0. .1..1..0. .1..1..0
..0..0..0. .1..0..1. .1..1..1. .0..0..1. .1..0..0. .0..0..0. .0..0..0
..1..0..0. .0..1..0. .0..1..1. .0..1..0. .0..0..0. .1..1..0. .0..1..1
..0..1..1. .0..0..0. .1..0..0. .0..1..1. .1..0..0. .1..1..0. .1..0..0
..0..0..0. .1..1..1. .1..1..0. .1..0..0. .1..1..0. .0..0..0. .0..0..0
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CROSSREFS
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Cf. A297720.
Sequence in context: A038658 A065700 A297511 * A185989 A190930 A209743
Adjacent sequences: A297722 A297723 A297724 * A297726 A297727 A297728
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KEYWORD
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nonn
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AUTHOR
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R. H. Hardin, Jan 04 2018
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STATUS
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approved
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