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.

Previous Showing 11-13 of 13 results.

A279982 Number of 6Xn 0..1 arrays with no element equal to a strict majority of its horizontal 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

0, 366, 8666, 118857, 1393359, 14787217, 144819856, 1355133674, 12222561957, 107168421376, 919014967352, 7738697955701, 64184333582436, 525544904926118, 4256024819831325, 34138948634797208, 271561971723338553
Offset: 1

Views

Author

R. H. Hardin, Dec 24 2016

Keywords

Comments

Row 6 of A279977.

Examples

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

Crossrefs

Cf. A279977.

A279983 Number of 7Xn 0..1 arrays with no element equal to a strict majority of its horizontal 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

0, 1205, 43543, 876704, 15071233, 237386464, 3444870482, 47830833513, 640788381590, 8346437314513, 106354332622511, 1330883900649974, 16405039161663344, 199652460980584803, 2403337808498154619
Offset: 1

Views

Author

R. H. Hardin, Dec 24 2016

Keywords

Comments

Row 7 of A279977.

Examples

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

Crossrefs

Cf. A279977.

A279970 Number of n X n 0..1 arrays with no element equal to a strict majority of its horizontal 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

0, 3, 50, 1922, 124030, 14787217, 3444870482, 1641425782980, 1628526202127628, 3404399281023205196, 15152580196285407820510
Offset: 1

Views

Author

R. H. Hardin, Dec 24 2016

Keywords

Comments

Diagonal of A279977.

Examples

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

Crossrefs

Cf. A279977.
Previous Showing 11-13 of 13 results.