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A167841 Acute-angled primes. 6

%I #18 Aug 04 2022 15:56:23

%S 103,107,109,131,151,163,173,181,191,193,197,241,251,263,271,281,283,

%T 293,307,313,317,353,373,383,397,401,409,419,439,461,463,487,491,503,

%U 509,523,547,563,571,587,593,601,607,613,617,619,647,659,673,683,691,701,709,719,727

%N Acute-angled primes.

%C Primes whose structure of digits represents an acute angle. The vertex is an internal digit. In the graphic representation the points are connected by imaginary line segments from left to right. This sequence is finite.

%H Micah Manary, <a href="/A167841/b167841.txt">Table of n, a(n) for n = 1..204</a>

%H Micah Manary, <a href="/A167841/a167841.py.txt">Python program</a>

%Y Primes in A135601.

%K base,nonn,fini,full,less

%O 1,1

%A _Omar E. Pol_, Nov 13 2009

%E More terms from _Micah Manary_, Aug 02 2022

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Last modified July 16 15:58 EDT 2024. Contains 374355 sequences. (Running on oeis4.)