A300092 - OEIS

A300092

Number of nX4 0..1 arrays with every element equal to 0, 2, 3, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

1, 18, 19, 56, 203, 672, 2168, 7287, 25652, 88027, 306375, 1070802, 3744286, 13105674, 45926952, 161012379, 564504898, 1979855821, 6944885024, 24362969123, 85473134558, 299883787584, 1052181830655, 3691806167058, 12953760142043

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

COMMENTS

Column 4 of A300096.

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=5

..0..0..0..0. .0..1..0..1. .0..1..0..0. .0..0..1..1. .0..0..1..1

..0..0..0..0. .1..1..1..1. .0..0..0..1. .0..0..1..1. .0..0..1..0

..0..0..0..0. .0..0..0..1. .0..1..1..1. .0..0..0..0. .1..1..1..1

..1..1..0..0. .0..1..1..0. .1..0..0..0. .1..1..0..0. .0..1..1..0

..0..1..0..0. .1..1..0..0. .1..1..0..1. .0..1..0..0. .1..1..0..0

CROSSREFS

Cf. A300096.

Sequence in context: A299454 A041664 A041662 * A042517 A041660 A257314

Adjacent sequences: A300089 A300090 A300091 * A300093 A300094 A300095

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 24 2018

STATUS

approved