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A302221
Number of n X 5 0..1 arrays with every element equal to 1, 2 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
1
3, 146, 760, 6110, 40395, 292781, 2043848, 14419536, 101511446, 713030990, 5019470018, 35283108018, 248180957058, 1745222920651, 12274305388046, 86321053540385, 607085317234430, 4269538885720366, 30026989609915629
OFFSET
1,1
COMMENTS
Column 5 of A302224.
FORMULA
Empirical recurrence of order 92 (see link above).
EXAMPLE
Some solutions for n=5
..0..0..1..0..0. .0..1..1..1..0. .0..0..1..1..1. .0..0..1..0..0
..0..1..1..0..0. .1..0..0..0..1. .1..1..0..0..1. .0..1..0..1..1
..1..0..0..1..1. .0..0..1..1..1. .0..0..0..1..1. .1..1..0..0..1
..1..1..0..0..1. .1..0..0..1..0. .1..1..1..1..0. .1..0..1..1..0
..0..0..1..1..1. .0..1..1..0..0. .1..0..0..0..1. .1..1..0..0..0
CROSSREFS
Cf. A302224.
Sequence in context: A152180 A042135 A326803 * A302667 A302469 A303251
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 03 2018
STATUS
approved