id:A064992 - OEIS Search Results

Search: id:A064992

Displaying 1-1 of 1 results found.

page 1

usigma(n+1) - usigma(n), where usigma(n) is the sum of unitary divisors of n (A034448).

+0
2

2, 1, 1, 1, 6, -4, 1, 1, 8, -6, 8, -6, 10, 0, -7, 1, 12, -10, 10, 2, 4, -12, 12, -10, 16, -14, 12, -10, 42, -40, 1, 15, 6, -6, 2, -12, 22, -4, -2, -12, 54, -52, 16, 0, 12, -24, 20, -18, 28, -6, -2, -16, 30, -12, 0, 8, 10, -30, 60, -58, 34, -16, -15, 19, 60, -76, 22, 6, 48, -72, 18, -16, 40 (list; graph; listen)

	OFFSET	`1,1`
	CROSSREFS	`Sequence in context: A112624 A139329 A069777 this_sequence A089759 A088152 A049270` `Adjacent sequences: A064989 A064990 A064991 this_sequence A064993 A064994 A064995`
	KEYWORD	`sign`
	AUTHOR	`njas, Oct 31 2001`

page 1

Search completed in 0.002 seconds

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

AT&T Labs Research