A284198 Number of n X 7 0..1 arrays with the number of 1's horizontally, antidiagonally or vertically adjacent to some 0 equal to the number of 0's adjacent to some 1, with top left element zero.

33, 1611, 105367, 14392557, 1321614728, 178138187113, 18564422929880, 2429325477564655, 271315506003954612, 34775052300161919967, 4048381878219586826112, 512565378120434864463849

Offset

1,1

Comments

Column 7 of A284199.

Links

R. H. Hardin, Table of n, a(n) for n = 1..31

Example

Some solutions for n=3
..0..1..0..0..0..0..1. .0..1..1..1..0..0..1. .0..1..0..1..0..1..1
..1..0..1..1..1..0..1. .1..1..1..0..0..1..1. .1..1..0..0..0..1..1
..1..0..0..1..0..1..1. .0..0..1..1..0..0..0. .0..0..0..1..1..1..0

Crossrefs

Cf. A284199.

Sequence in context: A012805 A093756 A284333 * A284164 A330478 A284221

Adjacent sequences: A284195 A284196 A284197 * A284199 A284200 A284201

Keyword

nonn

Author

R. H. Hardin, Mar 22 2017

Status

approved