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.

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A087595 Smallest n-digit member of A087593. Define dd(k) = the number formed by concatenating the absolute difference of successive digits of k. Sequence contains smallest n-digit prime p such that dd(p) is also prime.

Original entry on oeis.org

13, 101, 1009, 10009, 100363, 1000003, 10000141, 100000543, 1000000007, 10000000589, 100000000447, 1000000000063, 10000000000609, 100000000000721, 1000000000000843, 10000000000002547, 100000000000000609
Offset: 2

Views

Author

Amarnath Murthy, Sep 18 2003

Keywords

Comments

Conjecture: Sequence is infinite.

Examples

			a(5) = 10009 and dd(10009) = 1009 is a prime.

Crossrefs

Cf. A087593, A087594, A087596.

Extensions

More terms from David Wasserman, Jun 15 2005
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Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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