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 1-7 of 7 results.

A200852 Number of nX2 0..4 arrays with every row and column running average nondecreasing rightwards and downwards.

Original entry on oeis.org

15, 105, 647, 3728, 20656, 111222, 586908, 3047226, 15620118, 79228317, 398364306, 1988133262, 9858922561, 48617189158, 238575216150, 1165684780558, 5673701149975, 27520684819357, 133080240201400, 641746039540686
Offset: 1

Views

Author

R. H. Hardin Nov 23 2011

Keywords

Comments

Column 2 of A200858

Examples

			Some solutions for n=3
..1..3....0..1....0..0....0..3....0..3....0..0....0..1....0..2....1..1....0..0
..1..4....0..1....2..3....0..3....2..3....1..4....0..3....2..2....3..3....1..4
..4..4....0..1....3..4....3..3....4..4....1..3....3..4....2..4....3..4....4..4
		

A200853 Number of nX3 0..4 arrays with every row and column running average nondecreasing rightwards and downwards.

Original entry on oeis.org

42, 647, 8535, 103528, 1194898, 13295014, 144195756, 1532754468, 16036647028, 165590166035, 1691004116711, 17103881636663, 171555367761442, 1708005328930678, 16892696764660692, 166083227626724726
Offset: 1

Views

Author

R. H. Hardin Nov 23 2011

Keywords

Comments

Column 3 of A200858

Examples

			Some solutions for n=4
..0..0..2....0..1..2....0..0..1....0..1..1....0..0..0....0..2..2....0..0..0
..0..0..2....0..1..3....0..1..1....2..3..4....2..2..4....0..4..3....0..3..4
..4..4..4....1..3..4....3..4..4....1..3..3....2..2..4....2..3..3....1..2..4
..2..3..4....3..3..4....3..4..4....1..3..4....3..3..4....1..4..3....4..4..4
		

A200854 Number of nX4 0..4 arrays with every row and column running average nondecreasing rightwards and downwards.

Original entry on oeis.org

113, 3728, 103528, 2604826, 61846403, 1408572430, 31197299012, 676213941385, 14409889137860, 302739147144202, 6285532293756352, 129206691796171679, 2633609665501923727, 53291436966934467972, 1071555955172980827276
Offset: 1

Views

Author

R. H. Hardin Nov 23 2011

Keywords

Comments

Column 4 of A200858

Examples

			Some solutions for n=3
..0..0..2..2....0..2..1..2....1..1..2..3....0..0..1..1....0..1..1..2
..1..3..2..4....0..2..4..4....1..4..3..3....0..1..2..2....1..2..3..2
..2..2..4..3....1..2..3..4....1..3..3..3....1..1..2..2....1..2..2..4
		

A200851 Number of n X n 0..4 arrays with every row and column running average nondecreasing rightwards and downwards.

Original entry on oeis.org

5, 105, 8535, 2604826, 3001883019, 13079416454738
Offset: 1

Views

Author

R. H. Hardin Nov 23 2011

Keywords

Comments

Diagonal of A200858

Examples

			Some solutions for n=3
..0..2..2....0..1..2....0..2..2....2..2..3....0..3..3....0..1..2....0..0..2
..2..3..3....0..3..2....0..4..2....2..4..4....4..4..4....0..4..3....0..2..2
..3..3..4....2..2..2....2..3..4....2..3..4....3..4..4....2..4..3....3..4..4
		

A200855 Number of nX5 0..4 arrays with every row and column running average nondecreasing rightwards and downwards.

Original entry on oeis.org

297, 20656, 1194898, 61846403, 3001883019, 139139776965, 6255225014290, 274516401002582, 11809166397959784, 499226777653438730, 20791732909081189037
Offset: 1

Views

Author

R. H. Hardin Nov 23 2011

Keywords

Comments

Column 5 of A200858

Examples

			Some solutions for n=3
..0..0..0..0..0....0..0..0..1..4....0..0..1..2..1....0..0..0..0..1
..0..0..4..3..3....1..1..1..3..4....0..1..1..3..3....0..0..1..3..2
..1..1..4..2..4....1..1..2..3..4....1..1..2..4..4....0..0..1..4..2
		

A200856 Number of nX6 0..4 arrays with every row and column running average nondecreasing rightwards and downwards.

Original entry on oeis.org

767, 111222, 13295014, 1408572430, 139139776965, 13079416454738, 1191594088382132, 105834280697367652
Offset: 1

Views

Author

R. H. Hardin Nov 23 2011

Keywords

Comments

Column 6 of A200858

Examples

			Some solutions for n=3
..0..0..1..1..2..1....0..0..0..0..0..1....0..0..0..2..1..2....0..0..1..1..1..1
..0..0..1..3..2..2....0..0..0..0..1..2....0..0..0..2..4..2....0..0..1..2..1..2
..0..0..1..4..2..3....0..0..0..4..1..4....0..0..1..2..4..2....0..0..1..2..1..4
		

A200857 Number of nX7 0..4 arrays with every row and column running average nondecreasing rightwards and downwards.

Original entry on oeis.org

1957, 586908, 144195756, 31197299012, 6255225014290, 1191594088382132
Offset: 1

Views

Author

R. H. Hardin Nov 23 2011

Keywords

Comments

Column 7 of A200858

Examples

			Some solutions for n=3
..0..0..0..0..0..0..2....0..0..0..0..0..1..2....0..0..0..0..1..1..4
..0..0..0..4..1..1..4....0..0..0..0..1..1..3....0..0..0..3..1..1..4
..0..0..0..4..3..2..4....0..0..0..2..3..4..3....0..0..0..4..1..2..4
		
Showing 1-7 of 7 results.