A297821 Number of nX6 0..1 arrays with every element equal to 1, 2 or 3 king-move adjacent elements, with upper left element zero.

5, 573, 1114, 4306, 14237, 46701, 146530, 456814, 1433279, 4501076, 14136685, 44497190, 140143464, 441400791, 1390241695, 4379846806, 13801547551, 43497337265, 137100786459, 432178740943, 1362480439721, 4295731507860

Offset

1,1

Comments

Column 6 of A297823.

Links

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

R. H. Hardin, Empirical recurrence of order 98

Formula

Empirical recurrence of order 98 (see link above)

Example

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

Crossrefs

Cf. A297823.

Sequence in context: A241802 A274081 A153404 * A297991 A298844 A298651

Adjacent sequences: A297818 A297819 A297820 * A297822 A297823 A297824

Keyword

nonn

Author

R. H. Hardin, Jan 06 2018

Status

approved