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A066312
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Nonprime-powers, n, where all distinct primes dividing n are consecutive primes.
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2
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6, 12, 15, 18, 24, 30, 35, 36, 45, 48, 54, 60, 72, 75, 77, 90, 96, 105, 108, 120, 135, 143, 144, 150, 162, 175, 180, 192, 210, 216, 221, 225, 240, 245, 270, 288, 300, 315, 323, 324, 360, 375, 384, 385, 405, 420, 432, 437, 450, 480, 486
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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LINKS
| Harry J. Smith, Table of n, a(n) for n=1,...,1000
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EXAMPLE
| 75 is included because 75 = 3 * 5^2 and 3 and 5 are consecutive primes.
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PROG
| (PARI) { n=0; for (m=2, 10^9, f=factor(m); b=1; if (matsize(f)[1] == 1, next); for (i=2, matsize(f)[1], if (primepi(f[i, 1]) - primepi(f[i - 1, 1]) > 1, b=0; break)); if (b, write("b066312.txt", n++, " ", m); if (n==1000, return)) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Feb 10 2010]
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CROSSREFS
| Sequence in context: A141698 A091011 A104210 * A089341 A129494 A001284
Adjacent sequences: A066309 A066310 A066311 * A066313 A066314 A066315
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KEYWORD
| nonn
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AUTHOR
| Leroy Quet Jan 01 2002
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EXTENSIONS
| OFFSET changed from 0,1 to 1,1 by Harry J. Smith (hjsmithh(AT)sbcglobal.net), Feb 10 2010
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