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Search: id:A080747
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| A080747 |
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Sarrus numbers with more than 2 distinct prime factors. |
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+0
1
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| 561, 645, 1105, 1729, 1905, 2465, 2821, 4371, 6601, 8481, 8911, 10585, 11305, 12801, 13741, 13981, 15841, 16705, 18705, 23001, 25761, 29341, 30121, 30889, 33153, 34945, 39865, 41041, 41665, 46657, 52633, 55245, 57421
(list; graph; listen)
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OFFSET
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1,1
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MAPLE
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for n from 1 to 60000 do if not isprime(n) and modp(2^(n-1), n)=1 and nops(ifactors(n)[2])>2 then printf("%d, ", n) fi od: (C. Ronaldo)
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CROSSREFS
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Cf. A001567.
Sequence in context: A013487 A167822 A104590 this_sequence A074380 A085999 A137198
Adjacent sequences: A080744 A080745 A080746 this_sequence A080748 A080749 A080750
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KEYWORD
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nonn
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AUTHOR
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Benoit Cloitre (benoit7848c(AT)orange.fr), Mar 08 2003
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EXTENSIONS
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Edited by C. Ronaldo (aga_new_ac(AT)hotmail.com), Dec 19 2004
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