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 1-6 of 6 results.

A223812 Number of nX3 0..2 arrays with row sums nondecreasing and column sums unimodal.

Original entry on oeis.org

22, 337, 4120, 43941, 426527, 3875213, 33540705, 279734339, 2266708593, 17952142360, 139568672552, 1068728748298, 8081450512876, 60468894195838, 448444819136394, 3300666311519663, 24136833802226245, 175525144342241365
Offset: 1

Views

Author

R. H. Hardin Mar 27 2013

Keywords

Comments

Column 3 of A223815

Examples

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

A223813 Number of nX4 0..2 arrays with row sums nondecreasing and column sums unimodal.

Original entry on oeis.org

46, 1922, 65465, 1941904, 52310070, 1313561156, 31302500115, 716436867795, 15887478421991, 343524128791643, 7277651757377395, 151618311154271042, 3115328781386015762, 63276105450145436904, 1272818850579941619368
Offset: 1

Views

Author

R. H. Hardin Mar 27 2013

Keywords

Comments

Column 4 of A223815

Examples

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

A223816 Number of 2Xn 0..2 arrays with row sums nondecreasing and column sums unimodal.

Original entry on oeis.org

6, 50, 337, 1922, 9783, 45537, 198252, 817482, 3229096, 12308970, 45575437, 164673074, 582981253, 2028408899, 6954637113, 23545924195, 78860147938, 261655333573, 861137618468, 2814055941811, 9138890924393, 29517256515379
Offset: 1

Views

Author

R. H. Hardin Mar 27 2013

Keywords

Comments

Row 2 of A223815

Examples

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

A223817 Number of 3Xn 0..2 arrays with row sums nondecreasing and column sums unimodal.

Original entry on oeis.org

10, 222, 4120, 65465, 921010, 11789302, 139965348, 1562685952, 16583874090, 168662333466, 1654400665258, 15732261029037, 145639935220714, 1317015705919726, 11667008847929888, 101490035584201884
Offset: 1

Views

Author

R. H. Hardin Mar 27 2013

Keywords

Comments

Row 3 of A223815

Examples

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

A223814 Number of nX5 0..2 arrays with row sums nondecreasing and column sums unimodal.

Original entry on oeis.org

86, 9783, 921010, 76453838, 5767953144, 405333095737, 26977674423993, 1720880680824848, 106119501516207457, 6367010698793138060
Offset: 1

Views

Author

R. H. Hardin Mar 27 2013

Keywords

Comments

Column 5 of A223815

Examples

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

A223818 Number of 4 X n 0..2 arrays with row sums nondecreasing and column sums unimodal.

Original entry on oeis.org

15, 867, 43941, 1941904, 76453838, 2740448352, 91020540767, 2837847226191, 83919692408722, 2372632276864454, 64552746518391559, 1698928155067259979, 43440043738459660061, 1082941619670703392975
Offset: 1

Views

Author

R. H. Hardin, Mar 27 2013

Keywords

Comments

Row 4 of A223815.

Examples

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

Crossrefs

Cf. A223815.
Showing 1-6 of 6 results.