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A297512 Number of 7Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1 or 2 neighboring 1s. 1
1, 2735, 53175, 573119, 35919085, 1272836591, 28914051279, 949224569894, 32507021089982, 940396282368163, 28523594741249476, 910897573503281049, 27940827448011878850, 852581385081080135117, 26505475722899552411184 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Row 7 of A297506.
LINKS
EXAMPLE
Some solutions for n=3
..0..1..0. .0..0..0. .0..0..1. .0..1..1. .0..1..1. .0..1..1. .0..0..1
..1..0..0. .1..1..1. .0..1..0. .1..0..0. .1..0..0. .0..0..1. .0..1..0
..0..0..0. .0..0..0. .0..0..1. .0..0..0. .0..1..1. .0..0..0. .0..0..1
..1..0..0. .0..0..0. .0..1..1. .0..1..1. .0..1..0. .0..1..1. .0..1..0
..1..1..0. .0..0..0. .0..1..0. .0..0..0. .0..0..1. .1..0..0. .0..0..1
..0..0..0. .0..0..1. .1..1..0. .1..1..1. .1..0..1. .1..1..0. .1..0..0
..0..1..1. .1..1..0. .1..0..0. .0..1..0. .0..1..0. .0..0..0. .0..1..0
CROSSREFS
Cf. A297506.
Sequence in context: A045155 A251989 A251985 * A297726 A122473 A253994
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 31 2017
STATUS
approved

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Last modified March 18 22:09 EDT 2024. Contains 370951 sequences. (Running on oeis4.)