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 31-40 of 48 results. Next

A125531 Number of n X n arrays with entries in 1..4 in which adjacent entries differ by 1 or less (adjacent means in x or y directions).

Original entry on oeis.org

1, 4, 54, 3682, 1209830, 1909172038, 14441437270426, 523308354987531254, 90815542491916256949262, 75466682574077698691682950866, 300268405527350796472180876929042538
Offset: 0

Views

Author

R. H. Hardin, Dec 31 2006

Keywords

Comments

[Empirical] a(base+1,n,diff)=a(base,n,diff)+F(n,diff) for base>=2.diff.(n-1) and F(n,diff)= (n=2, A063496(diff+1)) (n=3, A068744(diff+1)) (n=4, A068745(diff+1)) (n=5, A068746(diff+1)) (n=6, A068747(diff+1))

A125532 Number of n X n arrays with entries in 1..4 in which adjacent entries differ by 2 or less (adjacent means in x or y directions).

Original entry on oeis.org

1, 4, 162, 75398, 386994338, 22039625597766, 13914188992963436802, 97391265572623379728784646, 7557580190940015054807296049439074, 6502004785230840000033839573162175747164038
Offset: 0

Views

Author

R. H. Hardin, Dec 31 2006

Keywords

Comments

[Empirical] a(base+1,n,diff)=a(base,n,diff)+F(n,diff) for base>=2.diff.(n-1) and F(n,diff)= (n=2, A063496(diff+1)) (n=3, A068744(diff+1)) (n=4, A068745(diff+1)) (n=5, A068746(diff+1)) (n=6, A068747(diff+1))

A125533 Number of n X n arrays with entries in 1..5 in which adjacent entries differ by 2 or less (adjacent means in x or y directions).

Original entry on oeis.org

1, 5, 247, 156579, 1191861707, 109495018399901, 121266251495154433997, 1619036215215662119089701145, 260573722827793207854814217971985907
Offset: 0

Views

Author

R. H. Hardin, Dec 31 2006

Keywords

Comments

[Empirical] a(base+1,n,diff)=a(base,n,diff)+F(n,diff) for base>=2.diff.(n-1) and F(n,diff)= (n=2, A063496(diff+1)) (n=3, A068744(diff+1)) (n=4, A068745(diff+1)) (n=5, A068746(diff+1)) (n=6, A068747(diff+1)).

A125534 Number of n X n arrays with entries in 1..5 in which adjacent entries differ by 3 or less (adjacent means in x or y directions).

Original entry on oeis.org

1, 5, 467, 877547, 32392165445, 23566800979324529, 337794127866926817026015, 95393532181581177183563991168527, 530759903230981312601669469700498881710153
Offset: 0

Views

Author

R. H. Hardin, Dec 31 2006

Keywords

Comments

[Empirical] a(base+1,n,diff)=a(base,n,diff)+F(n,diff) for base>=2.diff.(n-1) and F(n,diff)= (n=2, A063496(diff+1)) (n=3, A068744(diff+1)) (n=4, A068745(diff+1)) (n=5, A068746(diff+1)) (n=6, A068747(diff+1))

A125535 Number of n X n arrays with entries in 1..6 in which adjacent entries differ by 3 or less (adjacent means in x or y directions).

Original entry on oeis.org

1, 6, 694, 1842302, 106627685414, 135334709216482502, 3763490062900640355493914, 2293235289704399729849626764238522, 30618002869205254395943653838381933205254046
Offset: 0

Views

Author

R. H. Hardin, Dec 31 2006

Keywords

Comments

[Empirical] a(base+1,n,diff)=a(base,n,diff)+F(n,diff) for base>=2.diff.(n-1) and F(n,diff)= (n=2, A063496(diff+1)) (n=3, A068744(diff+1)) (n=4, A068745(diff+1)) (n=5, A068746(diff+1)) (n=6, A068747(diff+1))

A125536 Number of n X n arrays with entries in 1..6 in which adjacent entries differ by 4 or less (adjacent means in x or y directions).

Original entry on oeis.org

1, 6, 1058, 5748554, 948155870210, 4756811244059748042, 725704975038742796696062050, 3366853797682513115652233385161124618, 475014727091441236705100922925411926217680828034
Offset: 0

Views

Author

R. H. Hardin, Dec 31 2006

Keywords

Comments

[Empirical] a(base+1,n,diff)=a(base,n,diff)+F(n,diff) for base>=2.diff.(n-1) and F(n,diff)= (n=2, A063496(diff+1)) (n=3, A068744(diff+1)) (n=4, A068745(diff+1)) (n=5, A068746(diff+1)) (n=6, A068747(diff+1))

A125537 Number of n X n arrays with entries in 1..7 in which adjacent entries differ by 4 or less (adjacent means in x or y directions).

Original entry on oeis.org

1, 7, 1527, 11721313, 3050388738539, 27037458180935427547, 8157016618633297682357104957, 83768469285967811192253950787571671419, 29282610870399702055320868574328652947738735891523
Offset: 0

Views

Author

R. H. Hardin, Dec 31 2006

Keywords

Comments

[Empirical] a(base+1,n,diff)=a(base,n,diff)+F(n,diff) for base>=2.diff.(n-1) and F(n,diff)= (n=2, A063496(diff+1)) (n=3, A068744(diff+1)) (n=4, A068745(diff+1)) (n=5, A068746(diff+1)) (n=6, A068747(diff+1))

A125538 Number of n X n arrays with entries in 1..7 in which adjacent entries differ by 5 or less (adjacent means in x or y directions).

Original entry on oeis.org

1, 7, 2067, 26587217, 14749946711237, 353372896021348132827, 365544303118982657966348922687, 16327402400665015344535793527620336180117
Offset: 0

Views

Author

R. H. Hardin, Dec 31 2006

Keywords

Comments

[Empirical] a(base+1,n,diff)=a(base,n,diff)+F(n,diff) for base>=2.diff.(n-1) and F(n,diff)= (n=2, A063496(diff+1)) (n=3, A068744(diff+1)) (n=4, A068745(diff+1)) (n=5, A068746(diff+1)) (n=6, A068747(diff+1))

A125539 Number of n X n arrays with entries in 1..8 in which adjacent entries differ by 5 or less (adjacent means in x or y directions).

Original entry on oeis.org

1, 8, 2902, 52127130, 45120225704486, 1888405717902201691046, 3819825084723229625771326323002, 373453238394596300163358238712837771590526
Offset: 0

Views

Author

R. H. Hardin, Dec 31 2006

Keywords

Comments

[Empirical] a(base+1,n,diff)=a(base,n,diff)+F(n,diff) for base>=2.diff.(n-1) and F(n,diff)= (n=2, A063496(diff+1)) (n=3, A068744(diff+1)) (n=4, A068745(diff+1)) (n=5, A068746(diff+1)) (n=6, A068747(diff+1))

A125540 Number of n X n arrays with entries in 1..8 in which adjacent entries differ by 6 or less (adjacent means in x or y directions).

Original entry on oeis.org

1, 8, 3650, 97167566, 149893105802018, 13409953777346510733710, 69569862634707662759990393452322, 20929881875746750076174309956907291103359630
Offset: 0

Views

Author

R. H. Hardin, Dec 31 2006

Keywords

Comments

[Empirical] a(base+1,n,diff)=a(base,n,diff)+F(n,diff) for base>=2.diff.(n-1) and F(n,diff)= (n=2, A063496(diff+1)) (n=3, A068744(diff+1)) (n=4, A068745(diff+1)) (n=5, A068746(diff+1)) (n=6, A068747(diff+1))
Previous Showing 31-40 of 48 results. Next

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.