id:A093599 - OEIS Search Results

Search: id:A093599

Displaying 1-1 of 1 results found.

page 1

Composite numbers having an odd number of prime factors, all of which are distinct.

+0
1

30, 42, 66, 70, 78, 102, 105, 110, 114, 130, 138, 154, 165, 170, 174, 182, 186, 190, 195, 222, 230, 231, 238, 246, 255, 258, 266, 273, 282, 285, 286, 290, 310, 318, 322, 345, 354, 357, 366, 370, 374, 385, 399, 402, 406, 410, 418, 426, 429, 430, 434, 435 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`First differs from A007304 at 235711 = 2310, which is a(360) and thus beyond the tabulated range.`
	LINKS	`Eric Weisstein's World of Mathematics, Prime Sums` `Wikipedia, Moebius function`
	MATHEMATICA	`Select[Range[435], MoebiusMu[ # ] == -1 && Not[PrimeQ[ # ]] &] - from Alonso Delarte (alonso.delarte(AT)gmail.com), Jan 24 2005`
	CROSSREFS	`Cf. A007304.` `Sequence in context: A091454 A136152 A090815 this_sequence A007304 A160350 A053858` `Adjacent sequences: A093596 A093597 A093598 this_sequence A093600 A093601 A093602`
	KEYWORD	`nonn`
	AUTHOR	`Eric Weisstein (eric(AT)weisstein.com), Apr 03, 2004`

page 1

Search completed in 0.002 seconds

Last modified December 20 16:49 EST 2009. Contains 171081 sequences.

AT&T Labs Research