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Search: id:A123201
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| A123201 |
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Numbers n such that n..n+7 are products of the same number of primes. |
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1
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OFFSET
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1,1
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COMMENT
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Note that because 3405130=2*5*167*2039 is also 4-almost prime, 3405122 is the first n such that numbers n..n+8 are products of the same number N of primes (N=4).
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EXAMPLE
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3405122=2*7*29*8387, 3405123=3^2*19*19913, 3405124=2^2*127*6703, 3405125=5^3*27241, 3405126=2*3*59*9619, 3405127=11*23*43*313, 3405128=2^3*425641, 3405129=3*7*13*12473 all 4-almost primes.
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CROSSREFS
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Sequence in context: A036472 A114682 A157106 this_sequence A082247 A036473 A154871
Adjacent sequences: A123198 A123199 A123200 this_sequence A123202 A123203 A123204
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KEYWORD
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nonn
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AUTHOR
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Zak Seidov (zakseidov(AT)yahoo.com), Nov 05 2006
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