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A299836
Number of nX5 0..1 arrays with every element equal to 1, 2, 3, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero.
1
3, 236, 7388, 198202, 5544044, 156175241, 4390323230, 123389988671, 3468206088400, 97483926155429, 2740055381681771, 77016820598291470, 2164770726349218014, 60846868000557200365, 1710269486907135949823
OFFSET
1,1
COMMENTS
Column 5 of A299839.
FORMULA
Empirical recurrence of order 68 (see link above)
EXAMPLE
Some solutions for n=5
..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0
..0..0..0..1..1. .0..1..0..0..0. .0..0..0..1..0. .0..0..0..1..0
..0..1..1..0..0. .0..0..1..1..1. .1..1..1..1..1. .1..1..1..1..1
..0..0..0..1..1. .1..0..0..0..1. .1..0..0..1..0. .0..1..0..0..0
..1..1..0..0..0. .1..1..1..1..1. .1..0..1..1..0. .0..0..1..1..1
CROSSREFS
Cf. A299839.
Sequence in context: A299139 A299934 A299064 * A299725 A278318 A103062
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 20 2018
STATUS
approved