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.

A264696 Number of nX2 arrays of permutations of 0..n*2-1 with rows nondecreasing modulo 4 and columns nondecreasing modulo 5.

Original entry on oeis.org

1, 2, 3, 22, 93, 790, 7202, 53884, 640932, 7175700, 150597632, 3323171712, 92150022336, 2899990063360, 72285872321536
Offset: 1

Views

Author

R. H. Hardin, Nov 21 2015

Keywords

Comments

Column 2 of A264698.

Examples

			Some solutions for n=6
..5.11....0..1....0..1....0..5....5..1....0..5....5.10....5.10....0.11....5.10
..0..6...10.11....5.11...10..6...10.11....6.10....0.11....0.11...10..6....0..6
.10..2....5..6...10..6...11..7....0..6....7.11....6..2....1..6....5..1....8..1
..1..7....8..2....8..7....1..2....8..7....8..1....1..7....2..7....3..7....3.11
..4..8....4..7....4..2....9..3....4..2....9..2....4..8....8..3....9..2....4..2
..9..3....9..3....9..3....4..8....9..3....4..3....9..3....4..9....4..8....9..7
		

Crossrefs

Cf. A264698.

A264697 Number of nX3 arrays of permutations of 0..n*3-1 with rows nondecreasing modulo 4 and columns nondecreasing modulo 5.

Original entry on oeis.org

1, 5, 68, 1378, 26662, 975419, 54443028, 4147768144
Offset: 1

Views

Author

R. H. Hardin, Nov 21 2015

Keywords

Comments

Column 3 of A264698.

Examples

			Some solutions for n=5
.12..5.10....5..6.10...10.11..7....5..7.11....0..6.10....5..6.10....0..1.10
..8..0..6....0.11..7....5..1..2....0..8..1....1.13..5....0..8..1....5..6.11
.13.11..7...12..1..2....0..8.12...10.14..6....7..3.11....2..3.11....8.12..2
..9..1..3....4..8..3....6.14..3...12..4..2...12..9..2...12.13..7....4..7..3
..4..2.14....9.13.14....4..9.13...13..9..3....8..4.14....4..9.14....9.13.14
		

Crossrefs

Cf. A264698.

A264699 Number of 2Xn arrays of permutations of 0..n*2-1 with rows nondecreasing modulo 4 and columns nondecreasing modulo 5.

Original entry on oeis.org

1, 2, 5, 28, 159, 1383, 16818, 168974, 2921624, 43918848, 1166660928, 31828563776, 1193792259072, 43520679101184, 1622694957527040
Offset: 1

Views

Author

R. H. Hardin, Nov 21 2015

Keywords

Comments

Row 2 of A264698.

Examples

			Some solutions for n=6
..0..5..6..2.10.11....0..9..5..1..2..6....0..5.10..6..7.11....8..0..1.10..6..2
..4..8..1..9..7..3....8..4.10.11..7..3....8..4..9..1..2..3....4..5..9.11..7..3
		

Crossrefs

Cf. A264698.

A264700 Number of 3Xn arrays of permutations of 0..n*3-1 with rows nondecreasing modulo 4 and columns nondecreasing modulo 5.

Original entry on oeis.org

1, 3, 68, 1541, 37595, 1947196, 148906136, 15063986288
Offset: 1

Views

Author

R. H. Hardin, Nov 21 2015

Keywords

Comments

Row 3 of A264698.

Examples

			Some solutions for n=5
..0.12.10..6.11....0..8..5.10..6....0..1..9..5.10...12..0..5..1.11
..5..9..1..3..7....2.14..7..3.11....6..2.14..3.11....8..6.10..7..3
..8..4.13.14..2...12..4..9.13..1...12..8..4.13..7....4..9.13..2.14
		

Crossrefs

Cf. A264698.
Showing 1-4 of 4 results.