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A078579 Squarefree kernel of the average of n-th twin prime pair. 2
2, 6, 6, 6, 30, 42, 30, 6, 102, 6, 138, 30, 30, 6, 66, 114, 30, 30, 282, 78, 174, 210, 6, 462, 174, 570, 30, 618, 642, 330, 30, 822, 138, 858, 42, 510, 258, 210, 354, 546, 6, 1230, 426, 1290, 1302, 330, 714, 66, 1482, 186, 402, 30, 834, 1698, 1722, 894, 78 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

a(n)=A007947(A014574(n)); a(A070195(n)) = A070195(n).

CROSSREFS

Cf. A078580.

Sequence in context: A120627 A089879 A087651 * A110936 A197850 A010591

Adjacent sequences:  A078576 A078577 A078578 * A078580 A078581 A078582

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Nov 29 2002

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Last modified February 14 23:53 EST 2012. Contains 205689 sequences.