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A297686
Number of 6Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 1 or 4 neighboring 1s.
1
64, 865, 18840, 260924, 4870764, 78957968, 1368968852, 22772982621, 388437292266, 6536987996149, 110788354031138, 1870242391300687, 31643467601797592, 534716690271693434, 9041935800076605287
OFFSET
1,1
COMMENTS
Row 6 of A297682.
FORMULA
Linear recurrence of order 102 (see links). - Robert Israel, Oct 28 2019
EXAMPLE
Some solutions for n=3
..0..0..0. .1..0..1. .1..0..1. .0..0..1. .1..0..0. .0..0..0. .1..1..0
..1..0..0. .0..0..0. .0..0..1. .1..0..1. .0..1..0. .1..0..0. .0..0..0
..0..0..1. .0..0..0. .1..0..1. .0..1..0. .0..1..0. .1..0..0. .1..1..1
..1..1..1. .0..0..0. .1..0..1. .1..0..1. .0..0..0. .1..0..0. .1..0..1
..1..0..0. .0..0..0. .0..1..1. .0..0..0. .1..0..0. .0..0..0. .0..0..0
..0..0..1. .1..0..1. .0..0..1. .0..0..1. .0..0..1. .0..0..1. .1..1..0
CROSSREFS
Cf. A297682.
Sequence in context: A185299 A250281 A283547 * A292028 A306613 A185368
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 03 2018
STATUS
approved