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A246548 Start of the least quintuplet of consecutive squarefree numbers each of which has exactly n distinct prime factors. 3
462807341, 115, 6302, 294590, 106985762 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

By "consecutive squarefree numbers" we mean consecutive terms of A005117, not consecutive integers that also happen to be squarefree.

LINKS

Table of n, a(n) for n=1..5.

EXAMPLE

462807341, 462807343, 462807347, 462807349, and 462807353 are the smallest 5 primes that are also consecutive squarefree numbers, so a(1) = 462807341.

115, 118, 119, 122, and 123 are the smallest 5 semiprimes that are also consecutive squarefree numbers, so a(2) = 115.

6302, 6303, 6305, 6306, and 6307 is the smallest 5-tuple of consecutive squarefree numbers each of which has exactly 3 prime factors, so a(3) = 6302.

CROSSREFS

Cf. A005117, A242621 (triplet version), A246470 (quadruplet version), A246471.

Sequence in context: A096556 A038830 A038819 * A260524 A091677 A147717

Adjacent sequences:  A246545 A246546 A246547 * A246549 A246550 A246551

KEYWORD

nonn

AUTHOR

Hans Havermann, Aug 29 2014

STATUS

approved

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Last modified July 23 05:58 EDT 2017. Contains 289686 sequences.