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.

A264829 Number of nX2 arrays of permutations of 0..n*2-1 with rows nondecreasing modulo 4 and columns nondecreasing modulo 7.

Original entry on oeis.org

1, 2, 3, 7, 27, 84, 533, 5474, 53085, 404277, 4881327, 64681840, 821227056, 9483498992, 205857814704, 4404636345376
Offset: 1

Views

Author

R. H. Hardin, Nov 26 2015

Keywords

Comments

Column 2 of A264831.

Examples

			All solutions for n=4
..3..7....1..7....0..2....0..7....7..3....2..7....0..7
..4..0....4..0....7..3....4..1....0..4....4..0....1..2
..5..1....5..2....1..5....5..2....1..5....5..1....4..3
..6..2....6..3....4..6....6..3....2..6....6..3....5..6
		

Crossrefs

Cf. A264831.

A264830 Number of nX3 arrays of permutations of 0..n*3-1 with rows nondecreasing modulo 4 and columns nondecreasing modulo 7.

Original entry on oeis.org

1, 4, 33, 288, 5400, 165333, 4348623, 208444341
Offset: 1

Views

Author

R. H. Hardin, Nov 26 2015

Keywords

Comments

Column 3 of A264831.

Examples

			Some solutions for n=4
..0.11..7....8..0..1....8..0..7....8..0..2....0..1..7....8..0..9....0..8..7
..8..4..1...10..7..3....9..1..3....1..7..3....8.10..2...11..7..3....4..1..9
..9..5..3....4..9.11....4..2.10....9..5.10....9.11..3....4..1.10....5..2..3
..2..6.10....5..2..6....5..6.11....4..6.11....4..5..6....5..2..6....6.10.11
		

Crossrefs

Cf. A264831.

A264832 Number of 2Xn arrays of permutations of 0..n*2-1 with rows nondecreasing modulo 4 and columns nondecreasing modulo 7.

Original entry on oeis.org

1, 2, 4, 15, 134, 978, 10370, 114292, 2035620, 29935144, 567866832, 14295267600, 488489391072, 12470564424960
Offset: 1

Views

Author

R. H. Hardin, Nov 26 2015

Keywords

Comments

Row 2 of A264831.

Examples

			Some solutions for n=4
..4..0..1..7....0..1..7..3....0..2..7..3....0..1..2..7....0..1..5..7
..5..2..6..3....4..5..2..6....4..5..1..6....4..5..6..3....4..2..6..3
		

Crossrefs

Cf. A264831.

A264833 Number of 3 X n arrays of permutations of 0..n*3-1 with rows nondecreasing modulo 4 and columns nondecreasing modulo 7.

Original entry on oeis.org

1, 3, 33, 495, 17181, 881444, 43181739, 4357672022
Offset: 1

Views

Author

R. H. Hardin, Nov 26 2015

Keywords

Comments

Row 3 of A264831.

Examples

			Some solutions for n=4
..8..0..4..1....0..2..7..3....8..0.10..2....8..0..2..7....0..8.11..7
..2..7.11..3....8..4..1.10....1..7.11..3....1..9..3.11....9..1..5..3
..5..9..6.10....9..5..6.11....4..9..5..6....4..5.10..6....4..2..6.10
		

Crossrefs

Cf. A264831.
Showing 1-4 of 4 results.