A139042 - OEIS

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A139042

Composite numbers n for which A064287((n-1)/2)=1.

15, 39, 55, 87, 95, 111, 143, 159, 183, 295, 303, 319, 335, 407, 415, 447, 519 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	COMMENTS	`Is there an n for which A006694((a(n)-1)/2) is not equal to 4 ?`
	CROSSREFS	`Cf. A064287, A006694, A001122.` `Sequence in context: A176257 A055131 A121051 * A020142 A146696 A186295` `Adjacent sequences: A139039 A139040 A139041 * A139043 A139044 A139045`
	KEYWORD	`nonn`
	AUTHOR	`Vladimir Shevelev (shevelev(AT)bgu.ac.il), Jun 01 2008`

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Last modified February 16 19:43 EST 2012. Contains 205949 sequences.