id:A067197 - OEIS Search Results

Search: id:A067197

Displaying 1-1 of 1 results found.

page 1

Numbers n such that sum(i=1,n,i)=n*(n+1)/2 is not squarefree.

+0
1

7, 8, 9, 15, 16, 17, 18, 23, 24, 25, 26, 27, 31, 32, 35, 36, 39, 40, 44, 45, 47, 48, 49, 50, 53, 54, 55, 56, 62, 63, 64, 71, 72, 74, 75, 79, 80, 81, 87, 88, 89, 90, 95, 96, 97, 98, 99, 100, 103, 104, 107, 108, 111, 112, 116, 117, 119, 120, 121, 124, 125, 126, 127, 128 (list; graph; listen)

	OFFSET	`1,1`
	CROSSREFS	`Sequence in context: A074328 A037369 A076599 this_sequence A047523 A108177 A048029` `Adjacent sequences: A067194 A067195 A067196 this_sequence A067198 A067199 A067200`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Feb 19 2002`

page 1

Search completed in 0.002 seconds

Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

AT&T Labs Research