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.

A201027 Number of nX2 0..4 arrays with every row and column running average nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.

Original entry on oeis.org

10, 10, 41, 295, 159, 4587, 8476, 33401, 272191, 128622, 4546620, 8993979, 36684736, 308393680, 140796536, 5332902231, 10823034414, 44858965451, 380690718127, 170636868384, 6712393127261, 13840721168804, 57974199126361
Offset: 1

Views

Author

R. H. Hardin Nov 26 2011

Keywords

Comments

Column 2 of A201033

Examples

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

A201028 Number of nX3 0..4 arrays with every row and column running average nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.

Original entry on oeis.org

17, 41, 296, 4238, 3602, 249211, 1055902, 8657121, 141222119, 127874916, 9959532190, 42952255903, 362588593757, 6102371958391, 5510612701449, 446546458762938, 1940123176320382, 16627869936250796, 282670200216013184
Offset: 1

Views

Author

R. H. Hardin Nov 26 2011

Keywords

Comments

Column 3 of A201033

Examples

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

A201030 Number of nX5 0..4 arrays with every row and column running average nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.

Original entry on oeis.org

8, 159, 3602, 96844, 2579473, 78447852, 2410888256, 76028824895, 2398729474454
Offset: 1

Views

Author

R. H. Hardin Nov 26 2011

Keywords

Comments

Column 5 of A201033

Examples

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

A201026 Number of n X n 0..4 arrays with every row and column running average nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.

Original entry on oeis.org

5, 10, 296, 30157, 2579473, 21586894705
Offset: 1

Views

Author

R. H. Hardin Nov 26 2011

Keywords

Comments

Diagonal of A201033

Examples

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

A201029 Number of nX4 0..4 arrays with every row and column running average nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.

Original entry on oeis.org

15, 295, 4238, 30157, 96844, 6814915, 221032490, 3642791292, 29879423064, 103128216612, 8111212273960, 269665188133693
Offset: 1

Views

Author

R. H. Hardin Nov 26 2011

Keywords

Comments

Column 4 of A201033

Examples

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

A201031 Number of nX6 0..4 arrays with every row and column running average nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.

Original entry on oeis.org

61, 4587, 249211, 6814915, 78447852, 21586894705
Offset: 1

Views

Author

R. H. Hardin Nov 26 2011

Keywords

Comments

Column 6 of A201033

Examples

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

A201032 Number of n X 7 0..4 arrays with every row and column running average nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.

Original entry on oeis.org

206, 8476, 1055902, 221032490, 2410888256
Offset: 1

Views

Author

R. H. Hardin, Nov 26 2011

Keywords

Comments

Column 7 of A201033.

Examples

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

Crossrefs

Cf. A201033.
Showing 1-7 of 7 results.