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.

A264817 Number of nX3 arrays of permutations of 0..n*3-1 with rows nondecreasing modulo 3 and columns nondecreasing modulo 7.

Original entry on oeis.org

1, 8, 59, 743, 17869, 530230, 16961815, 1040174384
Offset: 1

Views

Author

R. H. Hardin, Nov 25 2015

Keywords

Comments

Column 3 of A264818.

Examples

			Some solutions for n=5
..9..0.14....0.10.14....0..1..7....7..1.14....7.14..8....0.14..8....0..7.10
.10..7..2....7..4..1....9..3.14....0..9..8....9..0..2....1..7..4...14..8.11
..3..8.11....2..5..8...12.10..8...10..5..2....3..1.10...10..2.11....1..2..5
.12..1..4....9.13.11....6.11..2....3..6.11....4..5.11...12..9..5....3..9.12
..6.13..5....3..6.12...13..4..5...12.13..4...12..6.13....6..3.13....6..4.13
		

Crossrefs

Cf. A264818.