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 1-10 of 11 results. Next

A189900 Number of nX4 binary arrays without the pattern 0 0 1 1 diagonally, vertically, antidiagonally or horizontally.

Original entry on oeis.org

15, 225, 3375, 35656, 377517, 3810503, 36890502, 354894796, 3368920072, 31765314572, 298643477857, 2799075682549, 26196661596588, 244952250115880, 2288817676141909, 21378736239048787, 199638668209430098
Offset: 1

Views

Author

R. H. Hardin May 01 2011

Keywords

Comments

Column 4 of A189905

Examples

			Some solutions for 5X4
..0..0..0..0....0..1..0..0....0..0..0..1....0..0..0..1....0..1..0..0
..0..0..0..0....1..0..1..1....1..1..1..1....0..0..0..0....1..1..1..0
..0..0..0..0....0..1..0..0....1..1..0..1....0..0..0..1....0..1..1..0
..1..1..0..0....0..1..0..1....1..1..0..1....0..0..0..1....0..0..1..0
..0..0..0..0....1..1..0..1....0..1..0..1....1..1..0..1....1..0..1..0

Links

A189901 Number of nX5 binary arrays without the pattern 0 0 1 1 diagonally, vertically, antidiagonally or horizontally.

Original entry on oeis.org

28, 784, 21952, 372850, 6442436, 101895401, 1518596226, 22333076803, 319934642768, 4537262993168, 63834288477978, 892671848458793, 12444325266903474, 173027620927389879, 2402063580660811510
Offset: 1

Views

Author

R. H. Hardin May 01 2011

Keywords

Comments

Column 5 of A189905

Examples

			Some solutions for 4X5
..0..1..0..0..1....0..0..0..0..0....0..0..1..0..1....0..1..0..1..1
..1..0..0..0..1....1..1..1..0..1....1..1..1..1..1....1..1..1..0..1
..0..0..0..1..0....1..0..0..0..0....0..1..1..0..0....1..0..1..1..1
..1..1..1..0..1....1..1..0..0..1....0..0..1..0..1....1..1..1..0..1

Links

A189902 Number of n X 6 binary arrays without the pattern 0 0 1 1 diagonally, vertically, antidiagonally or horizontally.

Original entry on oeis.org

52, 2704, 140608, 3833322, 109264923, 2719427244, 63149685928, 1435483321366, 31396505039678, 678724157124848, 14470229604883676, 305997066532246950, 6438705507919059232, 134891856265337289564, 2819613055895413412294
Offset: 1

Views

Author

R. H. Hardin, May 01 2011

Keywords

Comments

Column 6 of A189905.

Examples

			Some solutions for 4 X 6
..0..0..0..0..0..0....0..0..0..0..0..1....0..0..0..0..0..1....0..0..0..0..0..0
..0..1..0..1..0..0....1..1..1..1..0..1....1..0..1..1..1..1....1..0..1..0..0..0
..0..1..0..0..1..0....0..0..0..1..0..1....0..1..0..0..1..0....0..0..1..0..0..0
..0..0..0..0..0..0....0..1..1..1..0..0....0..0..1..0..0..0....1..0..1..0..1..1

Links

Crossrefs

Cf. A189905.

A189903 Number of nX7 binary arrays without the pattern 0 0 1 1 diagonally, vertically, antidiagonally or horizontally.

Original entry on oeis.org

96, 9216, 884736, 39048081, 1841998924, 73093919926, 2662054379066, 94632691298302, 3195656417625712, 106562344127343098, 3486148871895147896, 112963121516301689241, 3635916169412490099632, 116375651934670010881664
Offset: 1

Views

Author

R. H. Hardin May 01 2011

Keywords

Comments

Column 7 of A189905

Examples

			Some solutions for 4X7
..0..0..0..0..1..0..0....0..0..0..1..0..0..0....0..0..1..0..1..1..0
..0..1..0..0..1..0..1....0..1..1..0..1..0..0....0..0..1..0..1..0..1
..0..1..0..1..1..0..1....0..0..0..0..0..1..0....0..0..0..0..0..1..0
..0..0..0..0..0..0..1....0..0..1..0..0..0..0....0..0..1..0..1..1..0

Links

A189906 Number of 4Xn binary arrays without the pattern 0 0 1 1 diagonally, vertically, antidiagonally or horizontally.

Original entry on oeis.org

15, 225, 3375, 35656, 372850, 3833322, 39048081, 395408137, 3984364191, 40031462211, 401659633507, 4025118368372, 40315220042932, 403641830599161, 4040392891662855, 40438586707202572, 404700496922543129
Offset: 1

Views

Author

R. H. Hardin May 01 2011

Keywords

Comments

Row 4 of A189905

Examples

			Some solutions for 4X4
..0..0..0..0....0..1..1..0....0..1..0..1....1..1..1..0....1..0..1..1
..1..1..1..1....0..0..0..1....1..1..0..0....0..1..0..1....1..1..0..0
..0..0..0..0....1..0..1..0....1..0..0..1....1..0..0..0....0..0..1..0
..1..0..0..0....0..1..0..0....0..0..1..0....0..1..1..0....0..1..0..1

Links

A189907 Number of 5Xn binary arrays without the pattern 0 0 1 1 diagonally, vertically, antidiagonally or horizontally.

Original entry on oeis.org

28, 784, 21952, 377517, 6442436, 109264923, 1841998924, 30880712109, 513953862828, 8524935994485, 141100741163866, 2331559436006836, 38495167111404534, 635205147205219239, 10477659617370128080
Offset: 1

Views

Author

R. H. Hardin May 01 2011

Keywords

Comments

Row 5 of A189905

Examples

			Some solutions for 5X4
..0..0..0..0....0..0..0..0....0..1..0..1....0..1..0..0....0..1..0..1
..1..0..0..1....1..0..1..1....1..0..1..0....1..0..0..1....1..1..0..0
..1..0..1..0....0..1..0..1....1..1..0..1....0..0..0..0....0..1..0..0
..0..0..0..0....0..0..1..0....0..0..0..1....0..1..0..0....1..0..0..1
..1..0..1..0....0..0..0..0....1..0..1..1....1..0..0..0....1..0..0..0

Links

A189908 Number of 6Xn binary arrays without the pattern 0 0 1 1 diagonally, vertically, antidiagonally or horizontally.

Original entry on oeis.org

52, 2704, 140608, 3810503, 101895401, 2719427244, 73093919926, 1951128590287, 51589584277346, 1358147318157857, 35658646898466208, 933963332609935010, 24435853969347309728, 638718834034880161561, 16686274811151524544035
Offset: 1

Views

Author

R. H. Hardin May 01 2011

Keywords

Comments

Row 6 of A189905

Examples

			Some solutions for 6X4
..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0
..1..0..1..1....1..0..1..0....0..1..1..1....0..1..1..0....1..1..0..0
..0..1..1..1....1..1..0..0....1..0..1..0....0..0..0..0....0..0..0..1
..1..0..0..0....0..0..1..0....0..0..0..0....0..1..1..1....0..1..0..0
..1..0..1..1....0..0..0..1....0..0..1..0....0..1..0..0....0..1..0..0
..0..1..0..0....0..1..1..0....1..0..0..0....0..1..1..0....1..0..0..1

Links

A189899 Number of n X n binary arrays without the pattern 0 0 1 1 diagonally, vertically, antidiagonally or horizontally.

Original entry on oeis.org

2, 16, 512, 35656, 6442436, 2719427244, 2662054379066, 6207537762978575
Offset: 1

Views

Author

R. H. Hardin May 01 2011

Keywords

Comments

Diagonal of A189905

Examples

			Some solutions for 4X4
..1..0..1..1....1..1..0..1....1..0..0..1....1..0..0..1....0..0..0..0
..1..0..0..0....1..0..1..0....1..1..1..1....1..1..1..1....0..1..1..0
..1..0..0..0....1..0..0..0....0..0..1..0....1..1..0..0....0..0..1..0
..1..1..1..1....1..0..1..1....1..0..1..1....0..1..0..0....0..0..1..0

A189904 Number of nX8 binary arrays without the pattern 0 0 1 1 diagonally, vertically, antidiagonally or horizontally.

Original entry on oeis.org

177, 31329, 5545233, 395408137, 30880712109, 1951128590287, 111638761715758, 6207537762978575, 323783296887093516, 16672434688261743849, 837559653906404095478, 41615651706032541197843
Offset: 1

Views

Author

R. H. Hardin May 01 2011

Keywords

Comments

Column 8 of A189905

Examples

			Some solutions for 4X8
..0..0..0..0..1..0..1..1....0..0..0..0..1..0..1..1....0..0..0..0..0..0..1..0
..0..0..0..1..0..0..1..0....0..0..0..0..1..0..0..1....0..0..0..0..0..1..0..0
..0..0..0..0..0..1..0..1....0..0..0..0..1..0..1..0....0..0..0..0..1..0..0..0
..0..0..1..0..1..0..0..1....0..1..0..1..1..0..0..0....0..0..0..1..0..0..0..0

A189909 Number of 7Xn binary arrays without the pattern 0 0 1 1 diagonally, vertically, antidiagonally or horizontally.

Original entry on oeis.org

96, 9216, 884736, 36890502, 1518596226, 63149685928, 2662054379066, 111638761715758, 4622530935507966, 190665313953931062, 7834025420282521194, 321059587185451853573
Offset: 1

Views

Author

R. H. Hardin May 01 2011

Keywords

Comments

Row 7 of A189905

Examples

			Some solutions for 7X4
..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0
..0..0..0..1....0..0..0..1....0..0..0..1....0..0..0..0....0..0..0..1
..0..0..0..0....1..0..0..0....1..1..0..0....0..1..1..1....1..0..1..1
..0..1..1..1....0..0..0..1....0..0..1..0....0..0..0..0....0..1..0..0
..0..0..0..0....0..0..0..1....0..1..0..0....0..1..1..0....1..0..0..0
..0..1..0..1....0..0..0..1....1..0..1..1....0..1..1..0....0..0..1..0
..1..1..0..0....0..1..1..0....0..1..0..0....1..0..1..1....1..1..0..0
Showing 1-10 of 11 results. Next

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