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A054006 Number of divisors of n and n+1 which have the same number and sum of divisors. 3
4, 8, 8, 8, 8, 8, 16, 16, 16, 8, 16, 16, 16, 16, 16, 16, 16, 16, 32, 16, 16, 16, 16, 32, 16, 16, 16, 24, 16, 16, 16, 32, 32, 32, 16, 16, 32, 16, 32, 16, 16, 32, 32, 16, 32, 16, 16, 16, 16, 16, 32, 32, 16, 32, 16, 16, 64, 32, 16, 32, 16, 32, 16, 64, 32, 32, 16, 32, 32, 32, 32 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..71.

FORMULA

a(n) = tau(A054004(n))

EXAMPLE

See example in A054004.

CROSSREFS

Cf. A000005, A000203, A002961, A005237, A053249, A054004, A054005, A054007.

Sequence in context: A200357 A201405 A040012 * A029679 A304651 A187768

Adjacent sequences:  A054003 A054004 A054005 * A054007 A054008 A054009

KEYWORD

nonn

AUTHOR

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

EXTENSIONS

More terms from Jud McCranie, Oct 15 2000

STATUS

approved

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Last modified September 20 03:51 EDT 2019. Contains 327210 sequences. (Running on oeis4.)