A301845 Number of 5Xn 0..1 arrays with every element equal to 0, 1 or 2 horizontally or antidiagonally adjacent elements, with upper left element zero.

16, 512, 4299, 48802, 496085, 5240684, 54948498, 577194574, 6070236888, 63855283956, 671950959732, 7071734560895, 74426242914307, 783303529316947, 8243938456863301, 86764009232555716, 913155201853131784

Offset

1,1

Comments

Row 5 of A301841.

Links

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

R. H. Hardin, Empirical recurrence of order 99

Formula

Empirical recurrence of order 99 (see link above)

Example

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

Crossrefs

Cf. A301841.

Sequence in context: A379894 A322888 A291852 * A302269 A302968 A302072

Adjacent sequences: A301842 A301843 A301844 * A301846 A301847 A301848

Keyword

nonn

Author

R. H. Hardin, Mar 27 2018

Status

approved