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A074167 Product of prime divisors of composite numbers between consecutive primes. +0
2
1, 2, 6, 60, 6, 420, 6, 4620, 32760, 30, 471240, 14820, 42, 15180, 556920, 15273720, 30, 11171160, 164220, 6, 253333080, 2460, 587636280, 625757605200, 4620, 102, 289380, 6, 170940, 26848135265397670224000, 33540, 599888520, 138 (list; graph; listen)
OFFSET

0,2

EXAMPLE

a(4) = product of prime factors of composite numbers between 7 and 11 = 2 * 3 * (2 * 5) = 60.

CROSSREFS

Cf. A074168.

Sequence in context: A000146 A014070 A132525 this_sequence A083787 A138286 A102290

Adjacent sequences: A074164 A074165 A074166 this_sequence A074168 A074169 A074170

KEYWORD

nonn

AUTHOR

Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Aug 30 2002

EXTENSIONS

Corrected and extended by Joshua Zucker (joshua.zucker(AT)stanfordalumni.org), May 08 2006

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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