id:A057709 - OEIS Search Results

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Numbers n such that there is a unique x for which the sum of the aliquot parts of x (A005114) is n.

+0
4

3, 4, 7, 9, 10, 11, 12, 18, 24, 26, 28, 30, 34, 36, 38, 39, 48, 56, 58, 60, 66, 68, 70, 72, 78, 80, 82, 84, 86, 94, 98, 102, 112, 116, 118, 122, 126, 128, 132, 138, 142, 144, 158, 160, 164, 168, 172, 174, 178, 180, 190, 192, 204, 208, 212, 220, 222, 224, 228, 250 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`T. D. Noe, Table of n, a(n) for n=1..1000` `Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics (1).` `Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics (2).`
	EXAMPLE	`12 is a member of the sequence because s(121)=12 (and because no other integer x satisfies s(x)=12).` `18 is included because the sum of aliquot parts of 289 = 1+17 = 18, this being the only number with this property. 6 is not included because the sum of aliquot parts of 6 = 1+2+3=6 and the sum of aliquot parts of 25 = 1+5 = 6`
	CROSSREFS	`Cf. A001065, A005114, A048138.` `Sequence in context: A010444 A010398 A010435 this_sequence A037988 A088958 A026225` `Adjacent sequences: A057706 A057707 A057708 this_sequence A057710 A057711 A057712`
	KEYWORD	`nonn`
	AUTHOR	`Jack Brennen (jb(AT)brennen.net), Oct 24 2000`
	EXTENSIONS	`Removed 1 from the sequence. - T. D. Noe (noe(AT)sspectra.com), Dec 02 2008`

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Last modified December 6 22:55 EST 2009. Contains 170429 sequences.

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