A304424 Number of nX5 0..1 arrays with every element unequal to 1, 2, 3, 4 or 5 king-move adjacent elements, with upper left element zero.

3, 383, 5227, 98190, 1712347, 30362267, 536823135, 9501018264, 168137854364, 2975798466045, 52667917505864, 932167979824643, 16498484378035160, 292008101571549769, 5168281649176848170, 91473995207640848424

Offset

1,1

Comments

Column 5 of A304427.

Links

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

R. H. Hardin, Empirical recurrence of order 90

Formula

Empirical recurrence of order 90 (see link above)

Example

Some solutions for n=5
..0..0..0..1..0. .0..0..0..1..0. .0..0..0..1..0. .0..0..0..0..0
..1..0..0..0..0. .1..0..1..0..0. .1..0..0..1..1. .1..0..1..1..1
..0..1..1..1..1. .0..1..1..1..1. .1..0..0..0..1. .1..1..0..1..1
..1..1..0..0..1. .0..1..1..1..0. .1..0..0..0..0. .0..0..0..1..0
..0..0..0..0..1. .1..1..1..0..1. .1..1..0..1..1. .1..0..1..1..1

Crossrefs

Cf. A304427.

Sequence in context: A157577 A062604 A160192 * A316279 A305958 A317219

Adjacent sequences: A304421 A304422 A304423 * A304425 A304426 A304427

Keyword

nonn

Author

R. H. Hardin, May 12 2018

Status

approved