A284334 -id:A284334 - cp's OEIS frontend

A284340 Number of 7 X n 0..1 arrays with the number of 1's horizontally, diagonally or antidiagonally adjacent to some 0 equal to the number of 0's adjacent to some 1, with top left element zero.

64, 1689, 122495, 14581112, 1544903012, 179138039472, 20513380740103, 2451428833201600, 290448052609643641, 35231200322704249292, 4253729721779461810333, 520640922794348063107735

Offset: 1

R. H. Hardin, Mar 25 2017

nonn

Row 7 of A284334.

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

R. H. Hardin, Table of n, a(n) for n = 1..14

Cf. A284334.

A284328 Number of n X n 0..1 arrays with the number of 1's horizontally, diagonally or antidiagonally adjacent to some 0 equal to the number of 0's adjacent to some 1, with top left element zero.

Original entry on oeis.org

1, 4, 49, 5130, 1792007, 3063494246, 20513380740103, 582475612060753356

Offset: 1

R. H. Hardin, Mar 25 2017

nonn

Diagonal of A284334.

			Some solutions for n=4
..0..1..1..1. .0..0..0..0. .0..1..0..1. .0..0..0..1. .0..1..0..0
..0..1..1..1. .1..1..0..1. .0..1..1..0. .0..1..0..1. .0..1..1..1
..0..1..1..1. .1..1..1..1. .0..1..1..0. .0..1..1..1. .1..0..1..0
..0..0..1..1. .0..1..0..0. .1..0..0..1. .0..1..0..1. .1..1..0..0

Cf. A284334.

cp's OEIS Frontend

A284340 Number of 7 X n 0..1 arrays with the number of 1's horizontally, diagonally or antidiagonally adjacent to some 0 equal to the number of 0's adjacent to some 1, with top left element zero.

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