id:A100767 - OEIS Search Results

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Numbers n for which the values of the Moebius function (A008683) and the Mertens function (A002321) are both 1.

+0
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1, 94, 146, 161, 215, 237, 330, 334, 365, 394, 415, 538, 542, 794, 799, 813, 815, 851, 870, 878, 899, 905, 914, 917, 921, 1003, 1006, 1011, 1257, 1262, 1267, 1271, 1286, 1290, 1293, 1330, 1337, 1339, 1343, 1522, 1529, 1538, 1858, 1865, 1939, 2018, 2098 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`This sequence is a subset of A100306, Numbers n for which the values of the Moebius function and the Mertens function agree.`
	LINKS	`PrimeFan, Esoteric Integer Sequences`
	MATHEMATICA	`(* If not already defined *) If[Names["Mertens"] == {}, Mertens[x_] := Plus @@ MoebiusMu[Range[1, x]]]; Select[Range[2500], MoebiusMu[ # ] == 1 && Mertens[ # ] == 1 &]`
	CROSSREFS	`Sequence in context: A044974 A020355 A039551 this_sequence A134211 A050208 A035117` `Adjacent sequences: A100764 A100765 A100766 this_sequence A100768 A100769 A100770`
	KEYWORD	`nonn`
	AUTHOR	`Alonso Delarte (alonso.delarte(AT)gmail.com), Jan 03 2005`

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Last modified July 24 12:00 EDT 2008. Contains 142294 sequences.

AT&T Labs Research