

A162765


Least prime of two Ormiston pairs in same century.


2



277513, 379513, 558913, 565937, 837737, 850613, 936713, 1085113, 1353137, 1360613, 1374413, 1491013, 1529513, 1533313, 1745813, 1833613, 1855013, 2111513, 2138813, 2153737, 2194613, 2557213, 2601913, 2847413, 3277513
(list;
graph;
refs;
listen;
history;
text;
internal format)



OFFSET

1,1


COMMENTS

Two consecutive primes that use the same digits (rearranged) are called an Ormiston pair (see A072274).
The first case of three Ormiston pairs in the same century is (65150713, 65150731), (65150737, 65150773), (65150779, 65150797). The definition is unclear in such cases. The linked table includes both 65150713 and 65150737.  Jens Kruse Andersen, Jul 22 2014


REFERENCES

Andy Edwards, Ormiston Pairs, AMT Magazine, Volume 58 Number 2, 2002, p.1213.


LINKS

Jens Kruse Andersen, Table of n, a(n) for n = 1..10000
Jens Kruse Andersen, Ormiston Tuples
Andy Edwards, Ormiston Pairs
Eric Weisstein's World of Mathematics, Rearrangement Prime Pair


EXAMPLE

277513 and 277531 is first, and 277579 and 277597 is the second Ormiston pair in the 2776th century.


CROSSREFS

Cf. A072274.
Sequence in context: A157839 A237808 A271349 * A186879 A224252 A236017
Adjacent sequences: A162762 A162763 A162764 * A162766 A162767 A162768


KEYWORD

nonn,base


AUTHOR

Ki Punches, Jul 13 2009


EXTENSIONS

Edited and extended by Klaus Brockhaus, Jul 22 2009


STATUS

approved



