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A120993 a(n) is the integer in the n-th run of squarefree integers which is divisible by the number of integers in that run. +0
2
3, 6, 10, 15, 17, 19, 21, 26, 30, 33, 39, 42, 46, 51, 53, 55, 57, 62, 66, 69, 74, 78, 82, 87, 89, 91, 93, 97, 102, 105, 111, 114, 118, 122, 127, 129, 134, 138, 141, 146, 149, 151, 154, 159, 161, 163, 165, 170, 174, 177, 183, 186, 190, 195, 197, 199, 201, 206 (list; graph; listen)
OFFSET

1,1

LINKS

Leroy Quet, Home Page (listed in lieu of email address)

EXAMPLE

The runs of squarefree integers are:

(1,2,3),(5,6,7),(10,11),(13,14,15),(17),(19),(21,22,23),...

Since the 7th run has 3 terms, a(7) = 21, the multiple of 3.

CROSSREFS

Cf. A120992.

Sequence in context: A130484 A074374 A109804 this_sequence A083266 A054731 A029716

Adjacent sequences: A120990 A120991 A120992 this_sequence A120994 A120995 A120996

KEYWORD

nonn

AUTHOR

Leroy Quet Jul 21 2006

EXTENSIONS

More terms from Don Reble (djr(AT)nk.ca), Aug 01 2006

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


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