A298619 Number of nX5 0..1 arrays with every element equal to 1, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero.

0, 48, 7, 218, 1893, 5749, 51213, 407430, 2021867, 14701079, 110917562, 664892654, 4588022179, 32760548868, 211928109211, 1441328110516, 10001808721848, 66647520754563, 451710599496336, 3094047840833031, 20849304016560769

Offset

1,2

Comments

Column 5 of A298622.

Links

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

Example

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

Crossrefs

Cf. A298622.

Sequence in context: A229190 A069012 A115927 * A298831 A087407 A285660

Adjacent sequences: A298616 A298617 A298618 * A298620 A298621 A298622

Keyword

nonn

Author

R. H. Hardin, Jan 23 2018

Status

approved