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 37 results. Next

A046564 First denominator and then numerator of each element of the 1/4-Pascal triangle (by row).

Original entry on oeis.org

1, 1, 1, 1, 1, 1, 1, 1, 4, 1, 1, 1, 1, 1, 4, 5, 4, 5, 1, 1, 1, 1, 4, 9, 2, 5, 4, 9, 1, 1, 1, 1, 4, 13, 4, 19, 4, 19, 4, 13, 1, 1, 1, 1, 4, 17, 1, 8, 2, 19, 1, 8, 4, 17, 1, 1, 1, 1, 4, 21, 4, 49, 2, 35, 2, 35, 4, 49, 4, 21, 1, 1, 1, 1, 4, 25, 2, 35, 4, 119, 1, 35, 4, 119, 2, 35, 4, 25, 1, 1, 1, 1, 4
Offset: 1

Views

Author

Mohammad K. Azarian

Keywords

Examples

			1/1; --> 1 1
1/1 1/1; --> 1 1 1 1
1/1 1/4 1/1; --> 1 1 4 1 1 1
1/1 5/4 5/4 1/1; --> ...
1/1 9/4 5/2 9/4 1/1;
1/1 13/4 19/4 19/4 13/4 1/1;
1/1 17/4 8/1 19/2 8/1 17/4 1/1;
1/1 21/4 49/4 35/2 35/2 49/4 21/4 1/1; ...

Crossrefs

Cf. A046563.

A046565 First numerator and then denominator of each element of the 1/4-Pascal triangle (by row), excluding 1's.

Original entry on oeis.org

4, 5, 4, 5, 4, 9, 4, 5, 2, 9, 4, 13, 4, 19, 4, 19, 4, 13, 4, 17, 4, 8, 19, 2, 8, 17, 4, 21, 4, 49, 4, 35, 2, 35, 2, 49, 4, 21, 4, 25, 4, 35, 2, 119, 4, 35, 119, 4, 35, 2, 25, 4, 29, 4, 95, 4, 189, 4, 259, 4, 259, 4, 189, 4, 95, 4, 29, 4, 33, 4, 31, 71, 112
Offset: 1

Views

Author

Mohammad K. Azarian

Keywords

Examples

			1/1; -->
1/1  1/1; -->
1/1  1/4  1/1; --> 4
1/1  5/4  5/4  1/1; --> 5 4 5 4
1/1  9/4  5/2  9/4  1/1;  --> ...
1/1 13/4 19/4 19/4 13/4  1/1;
1/1 17/4  8/1 19/2  8/1 17/4  1/1;
1/1 21/4 49/4 35/2 35/2 49/4 21/4 1/1; ...

Crossrefs

Cf. A046563.

Extensions

More terms from Sean A. Irvine, Apr 13 2021

A046566 First denominator and then numerator of the 1/4-Pascal triangle (by row), excluding 1's.

Original entry on oeis.org

4, 4, 5, 4, 5, 4, 9, 2, 5, 4, 9, 4, 13, 4, 19, 4, 19, 4, 13, 4, 17, 8, 2, 19, 8, 4, 17, 4, 21, 4, 49, 2, 35, 2, 35, 4, 49, 4, 21, 4, 25, 2, 35, 4, 119, 35, 4, 119, 2, 35, 4, 25, 4, 29, 4, 95, 4, 189, 4, 259, 4, 259, 4, 189, 4, 95, 4, 29, 4, 33, 31, 71, 112, 2
Offset: 1

Views

Author

Mohammad K. Azarian

Keywords

Examples

			1/1; -->
1/1  1/1; -->
1/1  1/4  1/1; --> 4
1/1  5/4  5/4  1/1; --> 4 5 4 5
1/1  9/4  5/2  9/4  1/1; --> 4 9 2 5 4 9
1/1 13/4 19/4 19/4 13/4  1/1; --> ...
1/1 17/4  8/1 19/2  8/1 17/4  1/1;
1/1 21/4 49/4 35/2 35/2 49/4 21/4 1/1; ...

Crossrefs

Cf. A046563.

Extensions

More terms from Sean A. Irvine, Apr 13 2021

A046567 First denominator and then numerator of the 1/4-Pascal triangle (by row), excluding 1's and 4's.

Original entry on oeis.org

5, 5, 9, 2, 5, 9, 13, 19, 19, 13, 17, 8, 2, 19, 8, 17, 21, 49, 2, 35, 2, 35, 49, 21, 25, 2, 35, 119, 35, 119, 2, 35, 25, 29, 95, 189, 259, 259, 189, 95, 29, 33, 31, 71, 112, 2, 259, 112, 71, 31, 33, 37, 157, 102, 183, 2, 483, 2, 483, 183, 102, 157, 37, 41, 2, 97, 565, 285, 2
Offset: 1

Views

Author

Mohammad K. Azarian

Keywords

Examples

			1/1; 1/1 1/1; 1/1 1/4 1/1; 1/1 5/4 5/4 1/1; 1/1 9/4 5/2 9/4 1/1; 1/1 13/4 19/4 19/4 13/4 1/1; 1/1 17/4 8/1 19/2 8/1 17/4 1/1; 1/1 21/4 49/4 35/2 35/2 49/4 21/4 1/1; ...

Crossrefs

Cf. A046563.

Extensions

More terms from James Sellers, Dec 14 1999

A046568 Numerators of the 1/4-Pascal triangle (by row).

Original entry on oeis.org

1, 1, 1, 1, 1, 1, 1, 5, 5, 1, 1, 9, 5, 9, 1, 1, 13, 19, 19, 13, 1, 1, 17, 8, 19, 8, 17, 1, 1, 21, 49, 35, 35, 49, 21, 1, 1, 25, 35, 119, 35, 119, 35, 25, 1, 1, 29, 95, 189, 259, 259, 189, 95, 29, 1, 1, 33, 31, 71, 112, 259, 112, 71, 31, 33, 1
Offset: 1

Views

Author

Mohammad K. Azarian

Keywords

Examples

			1/1; --> 1
1/1 1/1; --> 1 1
1/1 1/4 1/1; --> 1 1 1
1/1 5/4 5/4 1/1; --> 1 5 5 5 1
1/1 9/4 5/2 9/4 1/1; --> ....
1/1 13/4 19/4 19/4 13/4 1/1;
1/1 17/4 8/1 19/2 8/1 17/4 1/1;
1/1 21/4 49/4 35/2 35/2 49/4 21/4 1/1; ...

Crossrefs

Cf. A046563.

A046569 Denominators of the 1/4-Pascal triangle (by row).

Original entry on oeis.org

1, 1, 1, 1, 4, 1, 1, 4, 4, 1, 1, 4, 2, 4, 1, 1, 4, 4, 4, 4, 1, 1, 4, 1, 2, 1, 4, 1, 1, 4, 4, 2, 2, 4, 4, 1, 1, 4, 2, 4, 1, 4, 2, 4, 1, 1, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 4, 1, 1, 1, 2, 1, 1, 1, 4, 1, 1, 4, 4, 1, 1, 2, 2, 1, 1, 4, 4, 1, 1, 4, 2, 4, 1, 2, 1, 2, 1, 4, 2, 4, 1, 1, 4, 4, 4, 4, 2, 2, 2, 2, 4, 4, 4, 4, 1
Offset: 1

Views

Author

Mohammad K. Azarian

Keywords

Examples

			1/1; --> 1
1/1 1/1; --> 1 1
1/1 1/4 1/1; --> 1 4 1
1/1 5/4 5/4 1/1; --> 1 4 4 1
1/1 9/4 5/2 9/4 1/1; --> ...
1/1 13/4 19/4 19/4 13/4 1/1;
1/1 17/4 8/1 19/2 8/1 17/4 1/1;
1/1 21/4 49/4 35/2 35/2 49/4 21/4 1/1; ...

Crossrefs

Cf. A046563.

Extensions

More terms from James Sellers, Dec 14 1999

A046570 Distinct numbers in writing first numerator and then denominator of each element of the 1/4-Pascal triangle (by row).

Original entry on oeis.org

1, 4, 5, 9, 2, 13, 19, 17, 8, 21, 49, 35, 25, 119, 29, 95, 189, 259, 33, 31, 71, 112, 37, 157, 102, 183, 483, 41, 97, 565, 285, 849, 45, 235, 759, 1705, 1419, 1815, 70, 497, 616, 4543, 1617, 53, 329, 637, 1729, 7007, 11011, 3432, 57, 191, 1603, 1183, 10465
Offset: 1

Views

Author

Mohammad K. Azarian

Keywords

Examples

			1/1; 1/1 1/1; 1/1 1/4 1/1; 1/1 5/4 5/4 1/1; 1/1 9/4 5/2 9/4 1/1; 1/1 13/4 19/4 19/4 13/4 1/1; 1/1 17/4 8/1 19/2 8/1 17/4 1/1; 1/1 21/4 49/4 35/2 35/2 49/4 21/4 1/1; ...

Crossrefs

Cf. A046563.

Extensions

More terms from James Sellers, Dec 14 1999

A046571 Odd numbers in the numerators of the 1/4-Pascal triangle (by row).

Original entry on oeis.org

1, 1, 1, 1, 1, 1, 1, 5, 5, 1, 1, 9, 5, 9, 1, 1, 13, 19, 19, 13, 1, 1, 17, 19, 17, 1, 1, 21, 49, 35, 35, 49, 21, 1, 1, 25, 35, 119, 35, 119, 35, 25, 1, 1, 29, 95, 189, 259, 259, 189, 95, 29, 1, 1, 33, 31, 71, 259, 71, 31, 33, 1
Offset: 1

Views

Author

Mohammad K. Azarian

Keywords

Examples

			1/1; --> 1
1/1 1/1; --> 1 1
1/1 1/4 1/1; --> 1 1 1
1/1 5/4 5/4 1/1; --> 1 5 5 1
1/1 9/4 5/2 9/4 1/1; --> 1 9 5 9 1
1/1 13/4 19/4 19/4 13/4 1/1; --> 1 13 19 19 13 1
1/1 17/4 8/1 19/2 8/1 17/4 1/1; --> 1 17 19 17 1
1/1 21/4 49/4 35/2 35/2 49/4 21/4 1/1; ...

Crossrefs

Cf. A046563.

A046572 First numerator and then denominator of the central elements of the 1/4-Pascal triangle (by row).

Original entry on oeis.org

1, 1, 1, 4, 5, 2, 19, 2, 35, 1, 259, 2, 483, 1, 1815, 1, 6864, 1, 52195, 2, 99671, 1, 382109, 1, 1469650, 1, 5668327, 1, 21915550, 1, 84913470, 1, 329624730, 1, 2563431075, 2, 4991324415, 1, 19463777025, 1, 75992317170, 1, 297026449005, 1
Offset: 1

Views

Author

Mohammad K. Azarian

Keywords

Examples

			1/1; 1/1 1/1; 1/1 1/4 1/1; 1/1 5/4 5/4 1/1; 1/1 9/4 5/2 9/4 1/1; 1/1 13/4 19/4 19/4 13/4 1/1; 1/1 17/4 8/1 19/2 8/1 17/4 1/1; 1/1 21/4 49/4 35/2 35/2 49/4 21/4 1/1; ...

Crossrefs

Cf. A046563.

Extensions

More terms from James Sellers, Dec 14 1999

A046573 First denominator and then numerator of the central elements of the 1/4-Pascal triangle (by row).

Original entry on oeis.org

1, 1, 4, 1, 2, 5, 2, 19, 1, 35, 2, 259, 1, 483, 1, 1815, 1, 6864, 2, 52195, 1, 99671, 1, 382109, 1, 1469650, 1, 5668327, 1, 21915550, 1, 84913470, 1, 329624730, 2, 2563431075, 1, 4991324415, 1, 19463777025, 1, 75992317170, 1, 297026449005, 1
Offset: 1

Views

Author

Mohammad K. Azarian

Keywords

Examples

			1/1; 1/1 1/1; 1/1 1/4 1/1; 1/1 5/4 5/4 1/1; 1/1 9/4 5/2 9/4 1/1; 1/1 13/4 19/4 19/4 13/4 1/1; 1/1 17/4 8/1 19/2 8/1 17/4 1/1; 1/1 21/4 49/4 35/2 35/2 49/4 21/4 1/1; ...

Crossrefs

Cf. A046563.

Extensions

More terms from James Sellers, Dec 14 1999
Showing 1-10 of 37 results. Next

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

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