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.

Showing 1-4 of 4 results.

A222583 Number of nX3 0..2 arrays with no more than floor(nX3/2) elements unequal to at least one horizontal or vertical neighbor, with new values introduced in row major 0..2 order.

Original entry on oeis.org

1, 5, 9, 112, 426, 4790, 18007, 208768, 783389, 9222742, 34725955, 412489970, 1558983053, 18631988604, 70660866011, 848302913944, 3226795572945, 38872008280152, 148241838020273, 1790674769103638, 6843805534505557
Offset: 1

Views

Author

R. H. Hardin Feb 25 2013

Keywords

Comments

Column 3 of A222587

Examples

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

A222584 Number of nX4 0..2 arrays with no more than floor(nX4/2) elements unequal to at least one horizontal or vertical neighbor, with new values introduced in row major 0..2 order.

Original entry on oeis.org

4, 18, 112, 1087, 11442, 128213, 1471412, 17068476, 198654710, 2328829654, 27335961632, 322535055233, 3807753230632, 45124599083917, 535113331694641, 6363369440619695, 75729209656948170, 903078623804307816
Offset: 1

Views

Author

R. H. Hardin Feb 25 2013

Keywords

Comments

Column 4 of A222587

Examples

			Some solutions for n=3
..0..1..1..1....0..0..0..0....0..1..1..1....0..0..0..0....0..0..0..1
..2..1..1..1....1..0..0..0....0..0..1..1....0..0..0..1....0..0..0..0
..0..1..1..1....0..2..0..0....0..1..1..1....0..0..0..1....0..0..0..0
		

A222585 Number of nX5 0..2 arrays with no more than floor(nX5/2) elements unequal to at least one horizontal or vertical neighbor, with new values introduced in row major 0..2 order.

Original entry on oeis.org

5, 59, 426, 11442, 111951, 3778560, 41768676, 1506610325, 17357088679, 636943229353, 7432232971076, 274815146069546, 3227773066527514, 119899193405842577, 1414159783426636818, 52710154832225023854
Offset: 1

Views

Author

R. H. Hardin Feb 25 2013

Keywords

Comments

Column 5 of A222587

Examples

			Some solutions for n=3
..0..1..0..0..0....0..0..0..0..0....0..1..1..1..1....0..0..0..0..0
..2..0..0..0..0....0..0..0..0..1....2..2..1..1..1....0..0..0..0..1
..2..2..0..0..0....0..0..0..1..1....2..2..1..1..1....0..0..0..2..2
		

A222586 Number of n X 6 0..2 arrays with no more than floor(nX6/2) elements unequal to at least one horizontal or vertical neighbor, with new values introduced in row major 0..2 order.

Original entry on oeis.org

14, 200, 4790, 128213, 3778560, 120603073, 4091063379, 143156705294, 5118550268413, 185282388086575, 6763852355780438, 248203088995170330, 9144018841491035138, 337809884604604139979, 12507948080012427636427
Offset: 1

Views

Author

R. H. Hardin, Feb 25 2013

Keywords

Comments

Column 6 of A222587.

Examples

			Some solutions for n=3
..0..0..1..1..1..1....0..0..0..1..2..1....0..0..0..0..1..1....0..0..0..1..2..2
..0..0..0..1..1..1....0..0..0..0..2..2....0..0..0..0..1..1....0..0..0..0..0..0
..0..0..0..2..0..1....0..0..0..0..2..2....2..0..0..0..0..1....0..0..0..0..0..2
		

Crossrefs

Cf. A222587.
Showing 1-4 of 4 results.