id:A074838 - OEIS Search Results

Search: id:A074838

Displaying 1-1 of 1 results found.

page 1

Numbers n such that sum(d|n, 1/core(d) ) is an integer where core(x) is the square-free part of x.

+0
1

1, 6, 8, 16, 20, 24, 54, 60, 72, 96, 126, 128, 180, 216, 243, 256, 384, 441, 486, 500, 504, 540, 648, 704, 729, 864, 891, 972, 1100, 1152, 1260, 1500, 1536, 1620, 1782, 1792, 1944, 2016, 2048, 2112, 2205, 2560, 3300, 3456, 3528, 3564, 3645, 3888, 4096 (list; graph; listen)

	OFFSET	`1,2`
	CROSSREFS	`Cf. A007913.` `Sequence in context: A162651 A022320 A100646 this_sequence A048228 A067543 A006583` `Adjacent sequences: A074835 A074836 A074837 this_sequence A074839 A074840 A074841`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Sep 09 2002`

page 1

Search completed in 0.002 seconds

Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

AT&T Labs Research