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.

A264641 Number of nX2 arrays of permutations of 0..n*2-1 with rows nondecreasing modulo 3 and columns nondecreasing modulo 4.

Original entry on oeis.org

1, 1, 6, 30, 284, 2344, 31632, 492432, 12098624, 236007424, 6065647616, 159458086912, 6086725226496, 260007588237312
Offset: 1

Views

Author

R. H. Hardin, Nov 19 2015

Keywords

Comments

Column 2 of A264643.

Examples

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

Crossrefs

Cf. A264643.

A264642 Number of nX3 arrays of permutations of 0..n*3-1 with rows nondecreasing modulo 3 and columns nondecreasing modulo 4.

Original entry on oeis.org

1, 8, 149, 3741, 199456, 18120064, 1726126592
Offset: 1

Views

Author

R. H. Hardin, Nov 19 2015

Keywords

Comments

Column 3 of A264643.

Examples

			Some solutions for n=4
..4.10..8....2..8..5....4..5..8....9..6..0....4..5..8....1..5..8....1..8..5
..0..7..1....6..0..9....6..9..0....1.10..4....6..9..0....9..6..0....6..0..9
..6..3..9....3..4..1...10..1..7...11..2..8....3..1.10...10..7..4....7..4.10
..2.11..5....7.10.11....3..2.11....3..7..5....7..2.11....3.11..2....3.11..2
		

Crossrefs

Cf. A264643.

A264644 Number of 2Xn arrays of permutations of 0..n*2-1 with rows nondecreasing modulo 3 and columns nondecreasing modulo 4.

Original entry on oeis.org

1, 1, 8, 55, 572, 5928, 113808, 2536688, 79981184, 2501785344, 102724061184, 4063172935680, 228978765692928
Offset: 1

Views

Author

R. H. Hardin, Nov 19 2015

Keywords

Comments

Row 2 of A264643.

Examples

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

Crossrefs

Cf. A264643.

A264645 Number of 3Xn arrays of permutations of 0..n*3-1 with rows nondecreasing modulo 3 and columns nondecreasing modulo 4.

Original entry on oeis.org

1, 6, 149, 5080, 364544, 46305472, 6958619648
Offset: 1

Views

Author

R. H. Hardin, Nov 19 2015

Keywords

Comments

Row 3 of A264643.

Examples

			Some solutions for n=4
..9..0..4..1....4..1..5..8....0..4.10..8....9..0..6..4....0.11..5..8
.11..2..8..5....0..9..3..2....9..1..7..5...10..1..2..8....4..7..1..2
..3..6..7.10....6.10..7.11....6..3.11..2....3..7.11..5....9..3..6.10
		

Crossrefs

Cf. A264643.
Showing 1-4 of 4 results.