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A317820 Number of nX5 0..1 arrays with every element unequal to 1, 2 or 3 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 1
3, 160, 356, 2726, 8556, 47374, 179111, 878802, 3604079, 16657873, 71153802, 320111818, 1390832362, 6188854830, 27092156914, 119925512941, 526911251983, 2326470845881, 10239421120031, 45158496956400, 198899068210330 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 5 of A317823.
LINKS
FORMULA
Empirical recurrence of order 94 (see link above)
EXAMPLE
Some solutions for n=5
..0..0..1..1..0. .0..1..0..1..0. .0..1..0..0..1. .0..1..0..0..1
..1..1..1..1..0. .1..0..0..1..1. .1..0..0..1..0. .0..1..1..1..1
..0..0..0..1..1. .0..0..1..1..0. .1..0..1..1..0. .1..1..0..0..1
..1..0..0..1..1. .1..1..1..0..1. .1..0..1..1..1. .0..0..0..0..1
..1..0..0..0..0. .1..0..0..0..1. .0..0..0..0..0. .1..1..0..0..0
CROSSREFS
Cf. A317823.
Sequence in context: A048797 A281799 A163320 * A318427 A318095 A108159
KEYWORD
nonn
AUTHOR
R. H. Hardin, Aug 07 2018
STATUS
approved

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Last modified February 25 11:20 EST 2024. Contains 370325 sequences. (Running on oeis4.)