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 1-2 of 2 results.

A188806 Number of nX3 array permutations with each element remaining in its original row or its original column.

Original entry on oeis.org

6, 82, 2720, 194568, 26101232, 5919004912, 2103543163584
Offset: 1

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Author

R. H. Hardin Apr 11 2011

Keywords

Comments

Column 3 of A188808

Examples

			Some solutions for 3X3
..6..0..8....2..0..1....1..4..8....6..0..8....0..4..8....6..1..5....6..2..1
..5..1..4....3..4..5....3..5..2....5..4..3....5..7..2....3..7..4....5..4..3
..3..7..2....6..8..7....0..6..7....7..1..2....3..1..6....0..8..2....0..7..8

A188807 Number of nX4 array permutations with each element remaining in its original row or its original column.

Original entry on oeis.org

24, 1313, 194568, 72104097, 57951767544
Offset: 1

Views

Author

R. H. Hardin Apr 11 2011

Keywords

Comments

Column 4 of A188808

Examples

			Some solutions for 3X4
..1..9..6..0....1..9..3..0....0..1..2.11....3..9..6..2....0..1..3..7
..8..4..7..3....6..4.10..5....7..5..4..3....0..5..4..7....5..6..2..4
.10..5..2.11...11..8..2..7...10..9..6..8...10..1.11..8....9..8.10.11
Showing 1-2 of 2 results.

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