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 1-3 of 3 results.

A119252 Odd digits in decreasing order.

Original entry on oeis.org

1, 3, 5, 7, 9, 31, 51, 53, 71, 73, 75, 91, 93, 95, 97, 531, 731, 751, 753, 931, 951, 953, 971, 973, 975, 7531, 9531, 9731, 9751, 9753, 97531
Offset: 1

Views

Author

Zak Seidov, May 10 2006

Keywords

Comments

There is a full list of 31 such numbers. Cf. A119253 Odd digits in increasing order, A009993 Digits in increasing order, A009995 Digits in decreasing order.

Crossrefs

Cf. A009993, A009995, A119253.

Programs

  • Mathematica
    Sort@Flatten@Table[FromDigits/@Subsets[Range[9,1,-2],{n}],{n,1,5}]

A119260 Numbers with even decimal digits in increasing order.

Original entry on oeis.org

0, 2, 4, 6, 8, 24, 26, 28, 46, 48, 68, 246, 248, 268, 468, 2468
Offset: 1

Views

Author

Zak Seidov, May 11 2006

Keywords

Comments

This is the complete list of all 16 such numbers. Cf. A119261 Even decimal digits in decreasing order, A119253 Odd digits in increasing order, A119252 Odd digits in decreasing order, A009993 Digits in increasing order, A009995 Digits in decreasing order.

Crossrefs

Cf. A009993, A009995, A119252, A119253, A119261.

Programs

  • Mathematica
    Flatten@Table[FromDigits/@Subsets[Range[2,8,2],{n}],{n,0,5}]

A119261 Numbers with even decimal digits in decreasing order.

Original entry on oeis.org

0, 2, 4, 6, 8, 20, 40, 42, 60, 62, 64, 80, 82, 84, 86, 420, 620, 640, 642, 820, 840, 842, 860, 862, 864, 6420, 8420, 8620, 8640, 8642, 86420
Offset: 1

Views

Author

Zak Seidov, May 11 2006

Keywords

Comments

This is the complete list of all 31 such numbers. Cf. A119260 Even decimal digits in increasing order, A119253 Odd digits in increasing order, A119252 Odd digits in decreasing order, A009993 Digits in increasing order, A009995 Digits in decreasing order.

Crossrefs

Cf. A009993, A009995, A119252, A119253, A119260.

Programs

  • Mathematica
    Sort@Flatten@Table[FromDigits/@Subsets[Range[8,0,-2],{n}],{n,5}]
Showing 1-3 of 3 results.

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

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