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.

Previous Showing 11-14 of 14 results.

A239823 Number of 5Xn 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of the elements above it, modulo 4.

Original entry on oeis.org

57, 2981, 204779, 13597573, 884977259, 58232200212, 3842974545029, 253291756984373, 16698512969146104, 1101377884320804108, 72647284903645567684, 4791845462621985366247, 316083646998469552591720
Offset: 1

Views

Author

R. H. Hardin, Mar 27 2014

Keywords

Comments

Row 5 of A239819

Examples

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

A239824 Number of 6Xn 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of the elements above it, modulo 4.

Original entry on oeis.org

129, 15266, 2405330, 366379173, 54668820459, 8243207656791, 1246285848518417, 188159790209407764, 28411744326144591606, 4291882371849878160532, 648352047493507989834712, 97941932841918812449706827
Offset: 1

Views

Author

R. H. Hardin, Mar 27 2014

Keywords

Comments

Row 6 of A239819

Examples

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

A239825 Number of 7Xn 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of the elements above it, modulo 4.

Original entry on oeis.org

293, 78188, 28156167, 9807771898, 3347474694032, 1154988223050638, 399696014140196630, 138146553326582677362, 47759100046784529992245, 16518942523671833416785350, 5714008803899171208707626059
Offset: 1

Views

Author

R. H. Hardin, Mar 27 2014

Keywords

Comments

Row 7 of A239819

Examples

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

A239811 Number of n X n 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of the elements above it, modulo 4.

Original entry on oeis.org

2, 23, 1480, 510748, 884977259, 8243207656791, 399696014140196630, 102140919909434198721245, 136329092264192919129397551406
Offset: 1

Views

Author

R. H. Hardin, Mar 27 2014

Keywords

Comments

Diagonal of A239819

Examples

			Some solutions for n=3
..3..2..2....3..2..0....3..0..0....3..2..2....2..3..3....3..2..0....2..3..3
..3..0..1....2..1..0....1..0..2....3..2..2....2..1..1....2..0..0....2..3..3
..2..0..1....3..1..3....2..0..1....1..2..0....2..3..2....1..2..2....3..2..0
		
Previous Showing 11-14 of 14 results.