A280158 Number of nX5 0..1 arrays with no element unequal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.
5, 40, 305, 1854, 10677, 58852, 318220, 1695030, 8941285, 46760710, 242970442, 1255597078, 6458360287, 33085037590, 168885713050, 859370947890, 4360537440625, 22069557056618, 111441207638795, 561547964534696
Offset: 1
Keywords
Examples
Some solutions for n=4 ..0..0..0..1..1. .0..0..1..1..1. .0..0..1..1..1. .0..0..1..1..1 ..1..1..0..0..1. .0..0..1..1..1. .0..1..1..0..0. .0..0..1..1..1 ..1..1..0..0..1. .1..0..0..0..1. .1..1..0..0..0. .0..0..1..0..0 ..1..0..0..1..1. .0..0..0..0..1. .1..1..0..0..0. .0..0..0..0..0
Links
- R. H. Hardin, Table of n, a(n) for n = 1..210
- R. H. Hardin, Empirical recurrence of order 70
Crossrefs
Cf. A280161.
Formula
Empirical recurrence of order 70 (see link above)
Comments