A298150 Number of nX4 0..1 arrays with every element equal to 0, 1, 3, 4, 5 or 8 king-move adjacent elements, with upper left element zero.

5, 16, 18, 196, 497, 2618, 15694, 74848, 398520, 2175661, 11395331, 60709714, 325569321, 1730448253, 9227502184, 49280674716, 262657795284, 1400914746703, 7474498985522, 39861303261615, 212613780799718, 1134133138126240

Offset

1,1

Comments

Column 4 of A298154.

Links

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

R. H. Hardin, Empirical recurrence of order 66

Formula

Empirical recurrence of order 66 (see link above)

Example

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

Crossrefs

Cf. A298154.

Sequence in context: A168463 A227871 A298226 * A238586 A195958 A151980

Adjacent sequences: A298147 A298148 A298149 * A298151 A298152 A298153

Keyword

nonn

Author

R. H. Hardin, Jan 13 2018

Status

approved