A298059 Number of nX4 0..1 arrays with every element equal to 1, 3, 4 or 6 king-move adjacent elements, with upper left element zero.

1, 13, 2, 11, 32, 42, 104, 269, 523, 1761, 4271, 9950, 33236, 84720, 210683, 665446, 1772832, 4540852, 13723354, 37563820, 98003395, 287421335, 798136234, 2112310069, 6070832044, 16971983943, 45446410743, 128849163703, 361098610655

Offset

1,2

Comments

Column 4 of A298063.

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

R. H. Hardin, Empirical recurrence of order 71

Formula

Empirical recurrence of order 71 (see link above)

Example

Some solutions for n=7
..0..0..1..1. .0..0..1..1. .0..1..1..0. .0..1..0..0. .0..0..1..1
..1..1..1..1. .1..1..1..1. .0..1..1..0. .0..1..0..0. .1..1..1..1
..0..0..0..0. .0..0..0..0. .0..0..0..0. .1..1..0..1. .1..1..1..0
..1..1..0..0. .1..1..0..0. .0..1..1..0. .1..1..0..1. .0..1..0..1
..1..1..1..1. .1..1..1..1. .0..0..0..0. .0..0..0..0. .0..1..0..0
..0..0..0..0. .0..0..0..0. .0..1..1..0. .1..1..0..1. .1..1..0..1
..1..1..0..0. .0..0..1..1. .0..1..1..0. .1..1..1..0. .1..1..0..1

Crossrefs

Cf. A298063.

Sequence in context: A078197 A070704 A317753 * A298708 A367936 A124686

Adjacent sequences: A298056 A298057 A298058 * A298060 A298061 A298062

Keyword

nonn

Author

R. H. Hardin, Jan 11 2018

Status

approved