A285029 Number of n X 7 0..1 arrays with the number of 1's horizontally, antidiagonally or vertically adjacent to some 0 one less than the number of 0's adjacent to some 1.
28, 1578, 256732, 22043878, 3064900470, 305391845288, 40651048407879, 4417815478017558, 572137146947057359, 65494200478482713286, 8342393878477796934994, 986183272505897296786724
Offset: 1
Keywords
Examples
Some solutions for n=2 ..0..0..0..1..0..1..0. .1..1..1..1..0..0..1. .1..1..0..1..1..0..0 ..0..1..1..0..1..0..1. .1..1..1..0..0..1..0. .1..0..0..0..0..1..1
Links
- R. H. Hardin, Table of n, a(n) for n = 1..31
Crossrefs
Cf. A285030.
Comments