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 1-5 of 5 results.

A202631 Number of n X n 0..3 arrays with adjacent row and column sums unequal.

Original entry on oeis.org

4, 184, 143028, 1960824272, 443471777729100
Offset: 1

Views

Author

R. H. Hardin Dec 21 2011

Keywords

Comments

Diagonal of A202636

Examples

			Some solutions for n=3
..2..0..3....0..1..0....0..1..0....2..3..2....2..0..0....0..2..3....3..2..1
..1..0..3....1..3..1....2..0..0....3..0..2....3..2..3....2..2..2....2..2..3
..0..2..0....2..0..0....2..2..2....3..2..2....2..2..0....0..0..2....1..0..1

A202632 Number of nX2 0..3 arrays with adjacent row and column sums unequal.

Original entry on oeis.org

12, 184, 2428, 32676, 443100, 5967248, 80018540, 1071819720, 14345548208, 191832756088, 2563434424352, 34237692810948, 457102551851688, 6100655850072092, 81398668652158260, 1085815517813680904
Offset: 1

Views

Author

R. H. Hardin Dec 21 2011

Keywords

Comments

Column 2 of A202636

Examples

			Some solutions for n=3
..2..0....0..2....1..0....0..3....1..0....0..0....1..0....1..1....3..3....0..0
..3..0....1..3....2..3....2..3....3..0....0..3....1..2....0..0....0..2....0..3
..1..1....3..0....3..1....1..3....0..2....1..0....1..0....2..3....1..2....0..1

Links

A202633 Number of nX3 0..3 arrays with adjacent row and column sums unequal.

Original entry on oeis.org

36, 2428, 143028, 8196796, 464590190, 26143599304, 1464347535012, 81766083532136, 4555446633690226, 253375514864780928, 14074813726276067778, 781057432128507731780, 43308319465255378496036, 2399781752411015808001612
Offset: 1

Views

Author

R. H. Hardin Dec 21 2011

Keywords

Comments

Column 3 of A202636

Examples

			Some solutions for n=3
..2..0..1....0..0..3....2..1..1....0..3..1....2..3..0....3..2..2....1..2..2
..2..3..3....1..2..2....3..3..3....0..2..0....1..0..2....2..3..0....1..2..1
..2..2..3....0..0..1....2..2..1....1..3..1....1..3..3....3..0..0....2..2..2

Links

A202634 Number of nX4 0..3 arrays with adjacent row and column sums unequal.

Original entry on oeis.org

108, 32676, 8196796, 1960824272, 459796683544, 106682611433736, 24584277764975388, 5638735096577721148, 1289001492923309570328, 293932444114275034112864
Offset: 1

Views

Author

R. H. Hardin Dec 21 2011

Keywords

Comments

Column 4 of A202636

Examples

			Some solutions for n=2
..1..0..2..3....0..3..1..1....2..1..2..2....0..1..1..1....2..1..2..3
..2..0..0..2....2..2..0..2....0..2..0..2....2..2..0..3....3..2..0..1

A202635 Number of n X 5 0..3 arrays with adjacent row and column sums unequal.

Original entry on oeis.org

324, 443100, 464590190, 459796683544, 443471777729100
Offset: 1

Views

Author

R. H. Hardin, Dec 21 2011

Keywords

Comments

Column 5 of A202636.

Examples

			Some solutions for n=2
..0..2..0..1..0....0..2..3..1..1....2..3..0..0..0....0..0..0..1..1
..2..3..1..1..1....0..0..2..1..3....0..1..2..0..3....0..2..1..3..1

Crossrefs

Cf. A202636.
Showing 1-5 of 5 results.

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