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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.

A217797 Smallest member of Ormiston prime 5-tuple.

Original entry on oeis.org

20847942560791, 21815124622913, 35581541330719, 40546521517819, 47950363950791, 54808830290791, 65923105730719, 84573572180719, 85950417240719
Offset: 1

Views

Author

Giovanni Resta, Oct 12 2012

Keywords

Comments

Searched up to 10^14.
On 11 October 2012 Jens Kruse Andersen found a 6-tuple starting at 166389896360719, which is likely to be the smallest.

Examples

			a(1) is in the sequence since (20847942560791, 20847942560917, 20847942560971, 20847942561079, 20847942561097) are 5 consecutive primes whose decimal representations contain exactly the same digits.

Links

Crossrefs

Cf. A072274 (Ormiston pairs), A075093 (Ormiston triples), A161160 (Ormiston quadruples).

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