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A302527
Number of nX7 0..1 arrays with every element equal to 1, 2, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
1
8, 98, 730, 5942, 128242, 1275348, 16130212, 303355178, 3654880956, 51530586242, 829503866128, 11159474949120, 160761590077504, 2423517947094100, 34130627941733812, 494058647385825910, 7263463498716354406
OFFSET
1,1
COMMENTS
Column 7 of A302528.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..1..1..1..0..0. .0..0..0..0..1..1..0. .0..0..0..1..0..1..1
..0..1..1..0..1..1..1. .1..1..1..1..0..0..0. .1..1..1..1..0..0..1
..0..1..0..1..1..1..1. .0..1..0..1..0..1..1. .0..0..0..1..0..1..0
..0..0..1..1..1..0..0. .1..0..1..1..0..1..1. .1..0..1..1..0..0..0
..1..1..0..0..1..1..0. .0..1..0..0..1..0..1. .0..1..0..1..0..1..1
CROSSREFS
Cf. A302528.
Sequence in context: A183334 A196327 A116130 * A303409 A264168 A116287
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 09 2018
STATUS
approved