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 1-2 of 2 results.

A068162 Smallest prime beginning and ending in at least n 7's.

Original entry on oeis.org

7, 77377, 7772777, 777767777, 77777677777, 7777774777777, 777777727777777, 77777777677777777, 77777777704777777777, 777777777727777777777, 77777777777677777777777, 7777777777772777777777777, 777777777777757777777777777
Offset: 1

Views

Author

Amarnath Murthy, Feb 24 2002

Keywords

Examples

			a(2) = 77377 is a prime that starts with 77 and ends in 77 (two 7's).

Crossrefs

Cf. A068160, A068161.

Extensions

More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 07 2003
a(1)=7 from Sean A. Irvine, Jan 30 2024

A068163 Smallest prime beginning and ending in at least n 9's.

Original entry on oeis.org

919, 990599, 99901999, 9999049999, 99999199999, 99999901999999, 9999999239999999, 99999999299999999, 9999999992999999999, 9999999999049999999999, 999999999990599999999999, 99999999999904999999999999
Offset: 1

Views

Author

Amarnath Murthy, Feb 24 2002

Keywords

Examples

			a(2) = 990599 is a prime that starts with 99 and ends in 99.

Crossrefs

Cf. A068160, A068161, A068162.

Extensions

More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Mar 31 2003
Showing 1-2 of 2 results.

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

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