A299093 Number of n X 4 0..1 arrays with every element equal to 0, 1, 2, 4, 5 or 7 king-move adjacent elements, with upper left element zero.

8, 29, 41, 125, 574, 1847, 6007, 22330, 78424, 268599, 949084, 3349021, 11698218, 41025548, 144230504, 506030772, 1774857783, 6230482209, 21869669571, 76741039322, 269319672263, 945257932761, 3317391481932, 11642270682192

Offset

1,1

Comments

Column 4 of A299097.

Links

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

R. H. Hardin, Empirical recurrence of order 68

Formula

Empirical recurrence of order 68 (see link above).

Example

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

Crossrefs

Cf. A299097.

Sequence in context: A155578 A115107 A298217 * A299875 A035339 A034167

Adjacent sequences: A299090 A299091 A299092 * A299094 A299095 A299096

Keyword

nonn

Author

R. H. Hardin, Feb 02 2018

Status

approved