emirp formed by concatenating primitive Pythagorean triples
Jonathan Post
jvospost3 at gmail.com
Mon Mar 3 01:12:23 CET 2008
Dear seqfans,
I'm guessing that it's not worth submitting the emirp subsequence of
Lekraj Beedassy's A138044, which is itself a subsequence of A138043.
Or is it?
It's a moment's effort to show that R(92525533) = 33552529 is also prime.
I do wonder which is the next of this non-submitted sequence, though...
To: editor
Subject: New Prime Curio about 92525533 by Post
From: Prime Curios! automailer for <jvospost3 at gmail.com>
There has been a new curio submitted for your approval:
92525533 [number_id=7606]
Smallest emirp formed by concatenating primitive Pythagorean triples.
References:
A138044 Primes formed from the concatenation of primitive Pythagorean triples.
A138043 Concatenation of primitive Pythagorean triangles, sorted.
[Post]
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