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A167841
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Acute-angled primes.
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6
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103, 107, 109, 131, 151, 163, 173, 181, 191, 193, 197, 241, 251, 263, 271, 281, 283, 293, 307, 313, 317, 353, 373, 383, 397, 401, 409, 419, 439, 461, 463, 487, 491, 503, 509, 523, 547, 563, 571, 587, 593, 601, 607, 613, 617, 619, 647, 659, 673, 683, 691, 701, 709, 719, 727
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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COMMENTS
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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.
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LINKS
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CROSSREFS
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KEYWORD
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base,nonn,fini,full,less
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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