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.

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A203496 Number of 6Xn 0..2 arrays with row sums equal and column sums unequal to adjacent columns.

Original entry on oeis.org

3, 676, 171068, 56438584, 20726134056, 8496020082856
Offset: 1

Views

Author

R. H. Hardin Jan 02 2012

Keywords

Comments

Row 6 of A203491

Examples

			Some solutions for n=5
..2..1..2..2..0....1..0..0..1..2....0..1..0..2..0....2..1..0..2..1
..0..1..2..2..2....1..0..1..0..2....1..2..0..0..0....2..2..1..1..0
..2..1..1..1..2....2..2..0..0..0....1..1..0..0..1....1..1..0..2..2
..1..1..1..2..2....1..0..2..1..0....2..1..0..0..0....2..0..0..2..2
..1..2..1..2..1....1..2..0..0..1....0..2..1..0..0....1..2..2..0..1
..1..2..2..2..0....1..1..0..2..0....2..0..0..1..0....1..1..2..0..2

A203497 Number of 7Xn 0..2 arrays with row sums equal and column sums unequal to adjacent columns.

Original entry on oeis.org

3, 2050, 1107888, 1004305424, 1022868051652, 1172134178554204
Offset: 1

Views

Author

R. H. Hardin Jan 02 2012

Keywords

Comments

Row 7 of A203491

Examples

			Some solutions for n=4
..2..2..0..1....2..0..1..1....1..2..0..1....2..0..1..0....0..1..0..0
..2..1..0..2....2..1..1..0....2..0..2..0....0..0..2..1....0..0..0..1
..1..1..1..2....1..2..0..1....1..1..2..0....1..2..0..0....0..0..1..0
..1..1..1..2....1..2..0..1....1..0..1..2....2..0..0..1....1..0..0..0
..2..1..1..1....2..2..0..0....1..2..1..0....2..0..0..1....0..0..0..1
..1..0..2..2....1..0..1..2....0..0..2..2....0..1..2..0....0..0..0..1
..0..2..1..2....1..0..1..2....1..0..1..2....2..1..0..0....0..1..0..0
Previous Showing 11-12 of 12 results.

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