A161507 - OEIS

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A161507

First occurrence of n in A161506.

1, 2, 6, 12, 30, 60, 420, 840, 27720, 360360, 6126120, 2677114440, 2406725881560 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	MATHEMATICA	`func[n_] := Module[{d=Divisors[n], e=EulerPhi[n]}, Length[Select[d, #>e/2&]]]; k=1; Table[While[func[k]<n, k++ ]; k, {n, 11}]`
	CROSSREFS	`Sequence in context: A100071 A129912 A182863 * A032177 A095349 A022916` `Adjacent sequences: A161504 A161505 A161506 * A161508 A161509 A161510`
	KEYWORD	`nonn`
	AUTHOR	`T. D. Noe (noe(AT)sspectra.com), Jun 17 2009`

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Last modified February 15 03:33 EST 2012. Contains 205694 sequences.