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A054003 tau(n+1) - tau(n) where n and n+1 have the same sum of divisors. 2
0, 2, -4, 0, 4, 0, 0, 8, 6, -4, -6, 6, -8, -8, 0, 4, 0, 4, 0, 8, 8, -8, 0, -4, 0, 8, -8, 0, -12, 12, -8, 8, 0, -8, -8, -4, -12, 24, -8, 0, 8, 0, -8, -4, -8, -8, 0, 16, -4, -4, 4, 0, 0, -28, 0, 0, -20, -4, 24, 0, -16, 8, 8, -8, -8, 12, -16, 0, -40, 40, -8, 8, 0, 0, 0, 40, -8, 0, 40 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..79.

FORMULA

a(n) = A054002(n) - A053249(n)

CROSSREFS

Cf. A000005, A000203, A002961, A053249, A054002.

Sequence in context: A294846 A011994 A258773 * A134352 A152648 A140875

Adjacent sequences:  A054000 A054001 A054002 * A054004 A054005 A054006

KEYWORD

sign

AUTHOR

Asher Auel (asher.auel(AT)reed.edu) Jan 12, 2000

EXTENSIONS

More terms from Naohiro Nomoto, Jun 23 2001

STATUS

approved

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Last modified February 16 02:39 EST 2019. Contains 320140 sequences. (Running on oeis4.)