cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A281799 Number of nX5 0..1 arrays with no element unequal to a strict majority of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.

Original entry on oeis.org

3, 157, 1725, 12318, 71445, 368408, 1770697, 8100180, 35778250, 153961577, 648808393, 2688490346, 10985899831, 44366461753, 177379460528, 703023818561, 2765216924694, 10803620128490, 41957868667589, 162081268856114
Offset: 1

Views

Author

R. H. Hardin, Jan 30 2017

Keywords

Comments

Column 5 of A281802.

Examples

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

Crossrefs

Cf. A281802.

Formula

Empirical recurrence of order 72 (see link above)