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 1-4 of 4 results.

A267953 Number of nX3 0..2 arrays with every repeated value in every row and column unequal to the previous repeated value, and new values introduced in row-major sequential order.

Original entry on oeis.org

4, 96, 1625, 30145, 493087, 8239879, 130870815, 2082478515, 32398824901, 502697528961, 7715771272901, 118070156191861, 1796719487307091, 27277256454891739, 412863240478890453, 6238891286484403929
Offset: 1

Views

Author

R. H. Hardin, Jan 22 2016

Keywords

Comments

Column 3 of A267957.

Examples

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

Crossrefs

Cf. A267957.

Formula

Empirical recurrence of order 56 (see link above)

A267954 Number of nX4 0..2 arrays with every repeated value in every row and column unequal to the previous repeated value, and new values introduced in row-major sequential order.

Original entry on oeis.org

11, 726, 30145, 1414023, 56103165, 2290723921, 87407239371, 3343976341229, 124140022659137, 4592258225675297, 167435268977631221, 6080341495638232187, 219161395227799839753, 7874818737427465078729, 281806381317852982386447
Offset: 1

Views

Author

R. H. Hardin, Jan 22 2016

Keywords

Comments

Column 4 of A267957.

Examples

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

Crossrefs

Cf. A267957.

A267955 Number of nX5 0..2 arrays with every repeated value in every row and column unequal to the previous repeated value, and new values introduced in row-major sequential order.

Original entry on oeis.org

29, 5046, 493087, 56103165, 5180448783, 495859988413, 43614373673363, 3849196727799125, 327167717944838925, 27686955163141200961, 2300890972142079069939, 190260556777584748989491
Offset: 1

Views

Author

R. H. Hardin, Jan 22 2016

Keywords

Comments

Column 5 of A267957.

Examples

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

Crossrefs

Cf. A267957.

A267956 Number of nX6 0..2 arrays with every repeated value in every row and column unequal to the previous repeated value, and new values introduced in row-major sequential order.

Original entry on oeis.org

77, 35574, 8239879, 2290723921, 495859988413, 112089546220707, 22894037516177941, 4695745214339217593, 920576027967120137161
Offset: 1

Views

Author

R. H. Hardin, Jan 22 2016

Keywords

Comments

Column 6 of A267957.

Examples

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

Crossrefs

Cf. A267957.
Showing 1-4 of 4 results.