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.

A068693 Smallest n-digit prime with all odd digits.

Original entry on oeis.org

3, 11, 113, 1117, 11113, 111119, 1111151, 11111117, 111111113, 1111111139, 11111111113, 111111111337, 1111111111139, 11111111111533, 111111111111713, 1111111111111153, 11111111111111119, 111111111111111131, 1111111111111111111, 11111111111111111131
Offset: 1

Views

Author

Amarnath Murthy, Mar 03 2002

Keywords

Links

Crossrefs

Cf. A068690, A068691, A068692.

Extensions

More terms from Sascha Kurz, Mar 17 2002

A068694 Largest n-digit prime with all odd digits.

Original entry on oeis.org

7, 97, 997, 9973, 99991, 999979, 9999991, 99999971, 999999937, 9999999557, 99999999977, 999999999959, 9999999999971, 99999999999973, 999999999999577, 9999999999999937, 99999999999999997, 999999999999999737
Offset: 1

Views

Author

Amarnath Murthy, Mar 03 2002

Keywords

Crossrefs

Cf. A068690, A068691, A068692, A068693.
Cf. A003618.

Formula

a(n)<=A003618(n). - R. J. Mathar, May 18 2007

Extensions

More terms from Sascha Kurz, Mar 17 2002

A178006 Largest n-digit prime with the most digits equal to 8.

Original entry on oeis.org

7, 89, 887, 8887, 88883, 888887, 9888889, 88888883, 888888887, 9888888887, 88988888887, 888888888887, 9888888888887, 88888888888889, 888888888888883, 8889888888888883, 88888888888888889, 889888888888888883
Offset: 1

Views

Author

Lekraj Beedassy, May 17 2010

Keywords

Comments

First maximum the number of 8's, then take the largest one.

Crossrefs

Cf. A037069, A105976, A099662, A068692
Showing 1-3 of 3 results.

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

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