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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A239529 Number of (n+1)X(n+1) 0..2 arrays with no element equal to all horizontal neighbors or unequal to all vertical neighbors, and new values 0..2 introduced in row major order.

Original entry on oeis.org

1, 2, 216, 11108, 7199001, 6976042240, 39351464058085, 559043719368109528
Offset: 1

Views

Author

R. H. Hardin, Mar 21 2014

Keywords

Comments

Diagonal of A239537

Examples

			Some solutions for n=4
..0..1..2..1..0....0..1..0..2..0....0..1..0..0..1....0..1..1..0..2
..0..1..2..1..0....0..1..0..2..0....0..1..0..0..1....0..1..1..0..2
..0..2..0..0..1....0..1..2..2..1....2..0..2..2..0....1..0..2..0..1
..1..2..0..0..1....0..2..2..0..1....2..0..2..2..0....1..0..2..2..1
..1..2..0..0..1....0..2..2..0..1....2..0..2..2..0....1..0..2..2..1

A239536 Number of (n+1)X(7+1) 0..2 arrays with no element equal to all horizontal neighbors or unequal to all vertical neighbors, and new values 0..2 introduced in row major order.

Original entry on oeis.org

328, 328, 645504, 17931608, 4125560328, 297124637920, 39351464058085, 3747320422936526, 425400186449108118, 43933336870300437068
Offset: 1

Views

Author

R. H. Hardin, Mar 21 2014

Keywords

Comments

Column 7 of A239537

Examples

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