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A123913 Semiprimes with prime factors summing up to 100. +0
1
291, 979, 1411, 2059, 2419, 2491 (list; graph; listen)
OFFSET

0,1

EXAMPLE

291 = 3*97 - 3 and 97 are both primes summing up to 100.

MATHEMATICA

Table[Select[Range[50], PrimeQ[ # ] && PrimeQ[100 - # ] &] [[k]]*(100 - Select[Range[50], PrimeQ[ # ] && PrimeQ[100 - # ] &] [[k]]), {k, 6}]

CROSSREFS

Sequence in context: A098250 A031515 A090890 this_sequence A031695 A088892 A098248

Adjacent sequences: A123910 A123911 A123912 this_sequence A123914 A123915 A123916

KEYWORD

base,fini,full,nonn

AUTHOR

Tanya Khovanova (tanyakh(AT)yahoo.com), Oct 28 2006

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.


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