A302084 Number of 5Xn 0..1 arrays with every element equal to 0, 1, 3 or 4 horizontally or antidiagonally adjacent elements, with upper left element zero.

16, 89, 386, 1018, 3048, 18492, 94846, 421570, 1921284, 9223705, 44315956, 212087178, 1016717313, 4884743522, 23497886916, 113131217224, 544897410224, 2625208400020, 12651486479761, 60984492720145, 294002949964740

Offset

1,1

Comments

Row 5 of A302081.

Links

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

Example

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

Crossrefs

Cf. A302081.

Sequence in context: A301967 A208640 A301888 * A229399 A269078 A240262

Adjacent sequences: A302081 A302082 A302083 * A302085 A302086 A302087

Keyword

nonn

Author

R. H. Hardin, Mar 31 2018

Status

approved